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When someone is being a bitch and you need to slap them, this is the sound effect you make. Or it could be used as a sound effect for anything, really. Especially when you're angry, frusterated, or confused.

pronounced - ah-pf-b-p-t
Like making the sound effect for a boat but adding AH in front.
Teacher: You've failed your midterm.
Me: Ahbpt this test in the face!
by Jeanette<3 October 28, 2009
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