push someone's buttons

push (one's) buttons

1. To do things that create a very strong emotional reaction in one, especially anger, irritation, or exasperation. I hate Dave's new boyfriend, he's always trying to push my buttons, and he's doing a good job of it! No one will be able to push your buttons like your children, but it's all a part of the adventure of parenthood.
2. To be sexually attractive or arousing to one. A guy who knows how to cook really pushes my buttons.
See also: button, push
Farlex Dictionary of Idioms.

push someone's buttons

Also, press someone's buttons. Draw a strong emotional reaction from someone, especially anger or sexual arousal. For example, My mother-in-law really knew how to push my buttons, or A good-looking redhead, she always seemed to press his buttons. This metaphoric expression transfers activating some mechanism by pushing buttons to human emotions. [Slang; 1920s]
See also: button, push
The American Heritage® Dictionary of Idioms by Christine Ammer.

push (or press) someone's buttons

be successful in arousing or provoking a reaction in someone. informal
See also: button, push
Farlex Partner Idioms Dictionary

push someone's buttons, to

To draw a strong emotional response from someone, usually negative. The term originated in the first half of the 1900s and has become a cliché. For example, “I said some negative things about the current administration and that really pushed Mary’s buttons—she exploded.” See also rub the wrong way.
See also: push
The Dictionary of Clichés by Christine Ammer
See also:
  • push (one's) buttons
  • push somebody's buttons
  • press (someone's) buttons
  • doggone it
  • what did your last slave die of
  • just (one's) luck
  • just my luck
  • just my, his, etc. luck
  • FGI
  • drive (one) round the twist