Top definition
noun
1 - The union of a human ass and a toilet, which upon flatulence produces a low-pitched sound (bass) often heard in the presents of a random jackass having a telephone conversation whilst shitting.
Over phone: What was that sound? Was it an Asswoofer? Dude are you talking to me on the shitter, in a public restroom? You ass!

mumbling Asswoofer: Hehehehe.
by Codeman_333 May 14, 2014
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2
When you fart it has a bass / sub woofer speaker like effect
I just farted and it had that Asswoofer effect.
by Quentin_B. January 26, 2007
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