on thorns

on thorns

Anxious or tense. The young man beside me, on thorns due to the train's delay, got up and began pacing back and forth down the length of the cabin. The situation left me on thorns: should I follow Molly, or stay and wait for help?
See also: on, thorn
Farlex Dictionary of Idioms.

on thorns

continuously uneasy, especially in fear of being detected.
See also: on, thorn
Farlex Partner Idioms Dictionary
See also:
  • be on edge
  • pace the floor
  • on pins and needles
  • be like a cat on hot bricks
  • like a cat on hot bricks
  • on edge
  • beside oneself, to be
  • beside yourself
  • beside (oneself)
  • beside oneself