attagirl Get Printable Handwriting Hear It! Say It! Write It! Learn It! Spelling Test Definition interjection. an expression of encouragement or approval. Example Sentence You really outdid yourself on that presentation, attagirl. Synonyms well done; good job; way to go Antonyms that's wrong; not good Hear It! Say It! Write It! attagirl Switch to cursive Start Share with your friends: