shake in (one's) boots

shake in (one's) boots

To tremble with fear. Often used sarcastically. My brother is so strong and scary-looking that people shake in their boots when he threatens them. Ooh, I'm really scared of you! I'm shaking in my boots, you frighten me so!
See also: boot, shake
Farlex Dictionary of Idioms.

shake in one's boots

 and quake in one's boots
Fig. to be afraid; to shake from fear. I was shaking in my boots because I had to go see the manager for being late. Stop quaking in your boots, Bob. I'm not going to fire you.
See also: boot, shake
McGraw-Hill Dictionary of American Idioms and Phrasal Verbs.
See also:
  • shake in boots
  • quake in one's boots
  • quake in (one's) boots
  • quaking/shaking in your boots/shoes
  • quake in (one's) shoes
  • quake like a leaf
  • shake like a jelly/leaf
  • shake like a leaf
  • (Is) that everything?
  • knock (one's) knees together