v. , slang To go away in a hurry; get out quickly. When he heard the crash he beat it as fast as he could. Often used as a command. The big boy said, "Beat it, kid. We don't want you with us."
Compare: CLEAR OUT 2 , LIGHT OUT, HEAD FOR THE HILLS.
BEAT IT
Meaning of BEAT IT in English
American idioms English vocabulary. Английский словарь американских идиом. 2012