From the theater: to laugh uncontrollably and not be able to stop. (Source: Cate Blanchette on the 12/04/06 Tonight Show). Wikipedia defines it as follows: "Corpsing is a theatrical slang term used to describe when an actor breaks character during a scene - usually by laughing or forgetting his or her lines, or by causing another cast member to do so. Though the origin of the term is unknown, it refers to almost literally murdering the scene.

A BBC TV program on 18 November 2006 stated an opinion that the term "corpsing" originated when there was a corpse on stage, acted by a living actor: there was sometimes a tendency to try to make that actor laugh."

A phrase to describe someone who is cognitively degenerating. Synonym of "going off the deep end". Can have varying degrees of severity.

Reference to the song "Hey You" by Pink Floyd. The line "and the worms ate into his brain" makes no sense in an otherwise linear and literal narration throughout the lyrics.

To fornicate with someone who is not taking an active role, usually out of nervousness or disinterest in their partner, but because of its macabre allusion to necrophilia, it is not unforeseeable that it could be because the person is non-consenting.

The act of sleeping so deeply that one looks like a dead body.

To have deathly features and move about the world.

When a man performs either varginal and anal sex and cock goes flaccid and fake a organism