A term used to congratulate another or show approval for an act or accomplishment. Similar to the term attaboy.
So I saw that you left with miss new booty last night, huh. Attababy!
by B. Floyd August 23, 2008
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What you say to your bowels after that loaf you've been trying to pinch for the last five days finally comes out.
Charlie had the damnedest time with his crappin' until his "atta baby" moment arrived.
by ferdii6069 June 02, 2016
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