hot under the collar

(adjective) angry, embarrassed, bitter

Example Sentence:

The policeman was hot under the collar because the criminal escaped.

The nervous exchange student felt hot under the collar during his presentation.

A: Did you send my mother a thank-you note for the birthday gift?
B: No, I forgot.
A: She’s going to be hot under the collar if you don’t.

Similar idioms:

1. have egg on one’s face
2. look a gift horse in the mouth
3. bitter pill
4. bitter pill to swallow
5. drop someone a line
6. like a cat on a hot tin roof
7. lose face
8. NBD
9. snap at
10. hot
11. chew someone out
12. get into hot water
13. screw up