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1. To engage in a particular task with enthusiasm or vigor. A: "I haven't packed anything yet." B: "Well then you better get busy—we leave for the airport in an hour!"
2. slang To have sex. A: "I heard those two got busy last night after the party." B: "Well, they did spend the whole night flirting!"
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.
to start working; to work or appear to work harder or faster. The boss is coming. You'd better get busy. I've got to get busy and clean this house up.
McGraw-Hill Dictionary of American Idioms and Phrasal Verbs. © 2002 by The McGraw-Hill Companies, Inc.
Start working, become active, as in Stop dawdling; get busy, or We'd better get busy on this paper. [c. 1900] Also see get a move on; get going; get on the stick.
The American Heritage® Dictionary of Idioms by Christine Ammer. Copyright © 2003, 1997 by The Christine Ammer 1992 Trust. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.