cross up someone

cross up

1. To deceive or swindle someone. A noun or pronoun can be used between "cross" and "up." Don't cross up that guy if you want a job in publishing—he's a celebrated editor.
2. To confuse or mix up one or more things. I must have crossed up the files—this paperwork doesn't belong in here.
See also: cross, up
Farlex Dictionary of Idioms.

cross up someone

verb
See cross someone up
See also: cross, someone, up
McGraw-Hill's Dictionary of American Slang and Colloquial Expressions
See also:
  • cross up
  • at cross purposes
  • at cross-purposes
  • divide
  • cross the Great Divide
  • cross with
  • cross the big pond
  • purpose
  • cross purpose
  • cross (one) (up)