When you drink a beer too fast and it results in regurgitation, not from being drunk but from the build up of beer foam inside your stomache.
Bouncer: You're not getting in, I just saw you vomit down the street.
patron: nah man, that was just foam gut.
patron: nah man, that was just foam gut.
by Brian Sure September 8, 2017
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by MiltonGapeAss February 18, 2025
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