be quaking in (one's) boots(redirected from is quaking in his boots)
be quaking in (one's) boots
To be trembling with fear. Often used sarcastically. Ooh, I'm really scared of you! I'm quaking in my boots, you frighten me so!
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.
be quaking in your boots
If someone is quaking in their boots, they are very frightened about something that is about to happen. If you stand up straight you'll give an impression of self confidence even if you're quaking in your boots. Note: Verbs such as shake, shiver, and tremble are sometimes used instead of quake. Someone had to tell the packed club that he wouldn't be appearing — you can imagine me shaking in my boots.
Collins COBUILD Idioms Dictionary, 3rd ed. © HarperCollins Publishers 2012