connive at

connive at (something)

To plot or conspire about something. What are you kids whispering about back there? You better not be conniving at something!
See also: connive
Farlex Dictionary of Idioms.

connive at something (with someone)

 and connive (at something) with someone
to scheme at something (with someone); to plot something (with someone). Are you conniving at something with Ronald? Are you and Ronald conniving with Tom at something I should know about? Stop conniving with people!
See also: connive
McGraw-Hill Dictionary of American Idioms and Phrasal Verbs.
See also:
  • (I) wouldn't (do something) if I were you
  • a/the feel of (something)
  • a straw will show which way the wind blows
  • a crack at (someone or something)
  • all right
  • (you) wanna make something of it?
  • a fast talker
  • all for the best
  • a thing of the past
  • a slew of (something)