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."
by Brittbrat October 21, 2007
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a girl that is awesome, meaning "that-a-girl" or "what-a-girl", also see shiznit.
Paula is such an attagirl.
by Paula M. October 20, 2005
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Sarah got an attagirl for finishing that project ahead of schedule.
by Silverdrake September 20, 2013
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the name of an indie-rock band from Toronto, Canada
ATTAGIRL makes my heart love.
by Edward K. March 25, 2013
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A woman who supports a patriarchical system designed to control their gender. Any woman who supports political platforms that deny women of their rights.
Pro -life women are attagirls.
by Theterriest October 31, 2018
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