slip (one's) trolley

slip (one's) trolley

1. slang To become insane; to go mad. Usually used jocularly or sarcastically. You've slipped your trolley if you think that plan will work! My poor granny is starting to slip her trolley. She called me Darlene the other day—that's the name of her dead cat!
2. slang To become uncontrollably angry. My parents are going to slip their trolley if they find out I took the car without asking! Cool it, man—don't slip your trolley. We'll find a way to get it working again.
See also: slip, trolley
Farlex Dictionary of Idioms.

slip one's trolley

Sl. to become a little crazy; to lose one's composure. I was afraid I would slip my trolley. He slipped his trolley and went totally bonkers.
See also: slip, trolley
McGraw-Hill Dictionary of American Idioms and Phrasal Verbs.

slip one’s trolley

tv. to become a little crazy; to lose one’s composure. (see also off one’s trolley.) I was afraid I would slip my trolley.
See also: slip, trolley
McGraw-Hill's Dictionary of American Slang and Colloquial Expressions
See also:
  • slip one’s trolley
  • slip trolley
  • come again
  • come again?
  • touched in the head
  • to coin a phrase
  • (Is) that everything?
  • you do you
  • (one) should be so lucky
  • (as) crazy as a bedbug