Me to my friend: I only date suicidal girls.
My friend: Why?
Me: Because that pussy is limited edition.
Me to my friend: I only date suicidal girls.
My friend: Why?
Me: Because that pussy is limited edition.
The joke plays on the offensive stereotype that suicidal people are disposable and that the speaker is making a twisted and crass comment. The punchline uses a play on words, that "limited edition" usually means something is exclusive and desirable. But here the implication is that a suicidal person's existence is limited by their condition making them a "limited edition" partner, making light of a dark situation.