get with

get with (someone or something)

1. To be knowledgeable about and engaged with something. The boss is going to want us to know exact figures in the meeting, so you better get with it. You really need to get with the times, Dad. People just don't talk that way anymore!
2. slang To have a romantic or flirtatious interaction with someone. A: "Is it true that you got with Katie over the summer?" B: "Yeah, we've been on a few dates so far."
3. slang To have sex with someone. I wouldn't be surprised if he got with her last night after the party—they were very flirty all night.
4. To meet with someone or some group, especially in order to accomplish some specific task. I want you to get with our lawyers right away and see what needs to be done.
See also: get
Farlex Dictionary of Idioms.

get with something

to become alert. (Often with it.) Hey, stupid. Get with it! Wake up, Bill. Get with what's going on!
See also: get
McGraw-Hill Dictionary of American Idioms and Phrasal Verbs.

get with

v. Slang
To become involved with or attuned to some activity; be properly engaged with something: You need to get with the project and start helping us.
See also: get
The American Heritage® Dictionary of Phrasal Verbs.
See also:
  • get with (someone or something)
  • get with it
  • get with someone
  • write the book on
  • wrote the book on
  • wrote the book on (something)
  • know a thing or two
  • know a trick or two
  • know (one's) beans
  • keep on top of (someone or something)