Top Definition
Excuse to not constitute in sexual behaviour.
Phrase commonly used to avoid having relations with busted boys.
Man:"Nice shoes, wanna fuck?"
Woman: "Mmmm...I don't think so,Im afraid I'm on antibiotics."
by ElleOh August 31, 2006
1 more definition
9 Words related to i'm on antibiotics
the gay excuse used for not drinking.
"Hey have a swig.",said Eric. "Nah man i cant, im on antibiotics." said Chubbs
by chubbs August 07, 2003

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