A night in which sexual intercourse has been scheduled in advance between a husband and wife who have small children. This is often done because their once exuberant sex life has been utterly destroyed since having children. Absolutely nothing trumps guts night!

Any night you got a legitimate shot at crushing some ass.
Phil: "Hey Tom, a bunch of us are going to the bar to watch the Astros in the world series. You in?"

Tom: "I would on any other night guys, but tonight is guts night and the wife is DTF! I am not missing that for the fucking Astros!"
by The Fratriarch October 29, 2021
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