/ Dictionary / Index A attagirl: Meaning and Definition of Find definitions for: at•ta•girl Pronunciation: (at'u-gûrl"), [key] — interj. Informal. (used as an enthusiastic expression of encouragement or approval to a girl, woman, or female animal.) Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. attack dog attain Related Content Daily Word Quiz: cautious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language