When an otherwise straight male is persuaded to, or on a whim in the heat of the moment, engages in a homosexual act of which he later regrets and is ashamed.
Alluded to in the musical number of the same name in Mel Brooks' film "Blazing Saddles".
Having shared the intamacy of a small tent for so long, in the stress of jungle combat, Pierre and Gustav came close to making the French Mistake on many a steamy night.
Nickname for the Navy's Recruit Training Command (boot camp) in Great Lakes, IL. So named for the regret felt by some recruits wondering just what they got themselves into.
A phrase used often in the canceled TV show "Arrested Development". The phrase is mostly used when the characters talk to themselves after a serious of poor choices/bad events. It's used to make light of bad situations, although the characters themselves don't find it funny.
MARTA: "I was really worried about you"
GOB: "You've got nothing to worry about. We're going to be together for a long time"
MARTA: "We're family now - I'm so happy. I'm going to call the kids!"
<MARTA walks out of room>
GOB: I've made a HUGE mistake