When a girl is Giving you a blow job, sneezes and bites your dick off. Easily prevented by dusting every once in a while and washing your sheets.
Doctor: Can you tell me why your penis is missing.
Guy: My girl was giving me a Bj and sneezed.
Doctor: Ah, the ol' Allergic chomp.
by Jerkymcstupid August 11, 2010
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