The Gang frequently uses the word "bang" to refer to sex.
- Dennis Reynolds offered to "frame bang" The Lawyer's wife in her sleep, to make it easier for the Lawyer to get a divorce. (Paddy's Pub: Home of the Original Kitten Mittens) The Lawyer asked Dennis not to rape his wife.
- Two episodes use the word bang in their titles: Season Two's Mac Bangs Dennis' Mom and Season Four's Mac's Banging the Waitress.
- In the episode Dennis Looks Like a Registered Sex Offender, Frank moves out of Charlie's apartment, saying that he needs "a maid I can bang". His "bang maid" turns out to be Charlie's mom.