Top definition
A gay male who is the "top" in anal sex.
My boyfriend is a total assgunner, my ass is always sore.
by Tocs "assmuncher" Fenn September 26, 2004
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2
Pilot: We have a bogey on our six!
Co-Pilot: Don't worry, the assgunner's got 'em.
by MechaMonkey September 28, 2004
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The Urban Dictionary Mug

One side has the word, one side has the definition. Microwave and dishwasher safe. Lotsa space for your liquids.

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