- melt in one's mouth
- melt in one's mouth1. to taste very good. (Also can be literal.) •
This cake is so good it'll melt in your mouth.
•John said that the food didn't exactly melt in his mouth.
2. [of meat] to be very, very tender. •My steak is so tender it could melt in my mouth.
•This filet will melt in your mouth!
* * *{v. phr.} 1. To be so tender as to seem to need no chewing. * /The chicken was so tender that it melted in your mouth./ 2. To taste very good; be delicious. * /Mother's apple pie really melts in your mouth./
Dictionary of American idioms. 2013.