What do JFK’s killer and a prostitute have in common?
“They both blow heads.”
What do JFK’s killer and a prostitute have in common?
“They both blow heads.”
The joke plays on the double meaning of "blow heads." In the context of JFK's killer, it refers to shooting someone in the head. In the context of a prostitute, it's a slang term for performing oral sex. It's a dark and morbid pun, making light of a serious event with a sexual innuendo.