Fixed expressions
Idioms
English fixed expressions — phrases whose meaning isn't obvious from the individual words. Each entry shows the meaning, an example sentence, and its register.
Idioms containing mouth, including its inflections. Clear word filter
4 idioms
put your money where your mouth is
CEFR B2to back up your words with action, especially money
Informal
straight from the horse's mouth
CEFR B2from the most reliable, first-hand source
Informal
butter wouldn't melt in his mouth
CEFR C1he looks perfectly innocent or gentle despite behaving quite differently
Informal
open mouth, insert foot
CEFR C1used to describe saying something tactless or embarrassing
Informal