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A person or person's ass predisposed to exceedingly loud expulsions of gas from the anal regions. Usually refers to a temporary condition of said effects.
See also 'magical buttrumpet'.
'Man, I got mad buttrumpet today, must be the beans'
'You've allways got buttrumpet stinkhead!'
by Unkle Funk April 14, 2008
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to but trumpet someone is to blow through their anus and giv them a hand job at the same time, may also be said "to trumpet someone"
"that dirty bastard tried to give me a but trumpet"
by retardedgoatfucker January 10, 2008
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