Atta baby

A congratulation for doing something beasty or awesome.

"dude! I just banged Megan fox!"
"atta baby!"

by One eyed midget March 10, 2011

Atta baby

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 2, 2016