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1) A cocky bacteria.

2) A form of describing an arrogant person by equating them with the cheese-like bacteria that accumulates beneath the foreskin of an unclean/unhygienic person.
Person A: What is up with that guy? He won't even stop talking on his bluetooth headset while the server takes his order!

Person B: Smugma.
by mercury895 November 15, 2010
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Jul 30 Word of the Day
A kid in my class is a water slapper
by jgyhsref January 22, 2020
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