Evil Weevil is part one of the eleventh episode from Season Two of Courage the Cowardly Dog, which aired November 2nd, 2001, preceding McPhearson Phantom.
After Eustace accidentally runs over a giant weevil with his truck, Muriel invites the insect to stay at their farmhouse and re-heal itself. Though, she has unknowingly invited a blood sucking parasite into their home.
Courage, Eustace, and Muriel are driving down the road as a large, human-sized insect flies across the road and gets hit by the truck. It lands on the side of the road and Muriel suggests that they go back and check it out. The bug, dressed in a top hat and suit, gets up from the ground and greets them in a friendly manner. As a way of asking for forgiveness for running him over, Muriel invites him to dinner and the weevil accepts.
As they are about to start eating dessert, the bug tells them that he is a Jeeves Weevil, also known as the "Butler Bug," which means they live to serve. He proceeds to assist Muriel with serving dessert and crowns Eustace by giving him the biggest piece of pie. Muriel offers him a piece of watermelon and he proceeds to use his "tongue" to suck up the remaining whole watermelon. Everyone is shocked, but the weevil plays it off afterwards. After dessert, he gives Eustace a shoulder massage in his chair. Courage watches as the Weevil uses his tongue to drink from Eustace. This leaves Eustace emaciated and tired. He decides he wants to take a nap upstairs and stands up, causing his overalls to fall on the floor. As Eustace and the Weevil head upstairs, the weevil tells a worried Courage that he's taken sewing classes and he could fix Eustace's' clothes in a jiffy.
Later, the weevil draws a bubble bath for Muriel. She asks him what they could do to repay him for his services and he declares that their happiness is all the thanks he needs. Muriel insists that he spends the night and he accepts the offer. As Muriel is in the bath, the weevil stands outside the door and hits the doorknob with this tongue. He stops when he notices Courage watching him and walks away.
Muriel, Eustace and Courage are asleep in bed when Courage hears the weevil nearby. He sees that the weevil is on the ceiling and tries to wake up Muriel, who is sleepy from her luxurious bath. Courage hides under the covers as the weevil lowers his tongue and drinks from an unseen person. The next day at breakfast, Courage and Muriel are sitting at the kitchen table as the weevil is making pancakes for them. They are unharmed but as Eustace walks in for breakfast, they realize he's even more emaciated than before. Muriel tells him to walk outside for some fresh air and he proceeds to do so. Courage walks outside and sees Eustace's' body flapping in the wind. As Courage reaches out and touches him, Eustace turns into a pile of dust on the ground. Courage sweeps up what's left of him and puts him in a plastic bag and runs inside to show Muriel.
He walks in to see the weevil giving Muriel a shoulder massage while drinking from her, making her emaciated as well. Courage panics and pulls out his cell phone and calls an exterminator. He tries to give the exterminator a visual representation of what the weevil looks like, but the exterminator proceeds to spray Courage instead and leaves. Courage recovers and sees that Muriel and the weevil have disappeared. He goes into the living room and sees the weevil taking pictures of Muriel as if she was a model. Courage gets fed up with the weevil’s underhanded ways, smacks the camera out of his hands and tells him to leave. The weevil challenges Courage to a contest to see if he gets to stay or not. They decide to have an eating contest where they both eat rancid foods. If one of them refuses to eat the food, the other wins the contest. First, they eat boiled broccoli, which Courage manages just fine. Then, they eat rancid boiled broccoli, which Courage eats while plugging his nose. Then, they eat rancid boiled broccoli that had been between the weevil's toes for the whole week. Courage opens his mouth to eat it, but runs outside to vomit.
As Courage is coming back inside, he sees the weevil drinking from what's left of Muriel. Courage takes the weevil’s tongue off of Muriel and puts it on the weevil’s stomach. The bug drinks from himself, making him shrink down to half of Courage’s size. He kicks Courage in the shin and leaves. Afterwards, Courage helps Muriel get back to her old, plump self and put Eustace's ashes in a planting pot as soil, hoping he would grow back to his old self.
- First time Courage is interrupted throughout the episode.
- First and only appearance of the Jeeves Weevil.
- While having the behavior similar to Eustace, the Jeeves Weevil calls Courage a stupid dog after he thwarts his plans to suck out Muriel's blood.
- The title card artwork and font are a reference to the works of illustrator Edward Gorey, and possibly his work "The Insect God" in particular.
- The Weevil's plans to suck the blood from Muriel and Eustace is pretty similar to what Imperfect Cell does in Dragon Ball Z, except slower and therefore presumably more painful. Dragon Ball Z aired on Cartoon Network during the time this episode aired, on its famous Toonami block, so it is likely David Steven Cohen was watching some Toonami to get ideas for Courage.
- This episode shares its music with "Family Business."
- When Courage calls the exterminator, he arrives and knocks on the door. He cannot be seen through the screen of the door when he is knocking, yet in the next shot of Courage opening the door, he can clearly be seen through the screen.