put someone on

put (one) on

To tease or joke with one, often by trying to convince them of something untrue. Quit putting me on, I know there isn't a Hollywood director calling me right now. I love putting my sister on—it's almost too easy to fool her.
See also: on, put
Farlex Dictionary of Idioms.

put someone on

1. tv. to tease or deceive someone innocently and in fun. Come on! You’re just putting me on!
2. tv. to introduce someone to cannabis use, usually smoking. (Drugs.) Where did you get that stuff? Who put you on?
See also: on, put, someone
McGraw-Hill's Dictionary of American Slang and Colloquial Expressions
See also:
  • put (one) on
  • put on
  • pull (one's) leg
  • pull leg
  • pull somebody's leg
  • pull someone’s leg
  • pull someone's leg
  • jerk (one's) chain
  • pull (one's) chain
  • pull someone's chain