atta girl 

A phrase used to congratulate someone on an accomplishment, a phrase commonly used by old men

sarah: Yes! I got my drivers license!
grandpa: Atta girl! I knew you could do it!

atta girl by hi7777777 February 17, 2010

Atta Girl 

When you watch porn and the chick is taking it in every orifice to the elbows and loving it.

“His whole arm is in her ass!” “Atta girl!”

Atta Girl by Tacosdorados July 1, 2019

Atta girl DB 

An exclamation or remark made when someone completes a very trivial task. Common remark made from one guy friend from another.

Guy #1: Hey I just walked here from three blocks away!
Guy #2: Atta girl DB
Guy #1: Ugh... -_-

Atta girl DB by J.hunt June 17, 2009

attagirl

An expression of congratulations or praise directed at a female.

Comes from the expression "that's a good girl" which became "that a girl" and finally "attagirl."

"Attagirl! I knew you could do it."

attagirl by Brittbrat November 6, 2007

attagirl

a girl that is awesome, meaning "that-a-girl" or "what-a-girl", also see shiznit.

Paula is such an attagirl.

attagirl by Paula M. November 1, 2005

attagirl

Feminine variant of attaboy.

Sarah got an attagirl for finishing that project ahead of schedule.

attagirl by Silverdrake September 20, 2013

attagirl

the name of an indie-rock band from Toronto, Canada

ATTAGIRL makes my heart love

attagirl by Edward K. March 25, 2013