Top Definition
This occurs on hot, sweaty days when you suddenly realise that half of your underwear has crept up your arse and you have to drag it back out, as in:
Guy1: Dude, what's up, you're squirming.
Guy2: Aaaargh! It's Hungry Bum Syndrome.
by Funk October 14, 2004
5 Words related to Hungry Bum Syndrome

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