Sergeant Sausage

Sergeant Sausage is Homer's imaginary friend.

History
When Rachel was trying to kill Homer, he calls upon his imaginary friend, Sergeant Sausage. He fights Rachel for a bit until she shoves him into a microwave and turns it on, causing him to explode.

Homer is later eating out of the microwave, sad that his imaginary friend is dead. Sergeant Sausage then says that he's imaginary and can't die. Homer then tells him to get back in the microwave.