lose tongue

Related to lose tongue: loose tongue

lose (one's) tongue

To suddenly become unable to speak, typically due to shock or confusion. Kathy was so surprised when she won the award that she lost her tongue and wasn't able to make an acceptance speech. If I had to speak in front of a crowd that big, I think I would lose my tongue.
See also: lose, tongue
Farlex Dictionary of Idioms.

lose (one's) tongue

To lose the capacity to speak, as from shock.
See also: lose, tongue
American Heritage® Dictionary of the English Language, Fifth Edition.
See also:
  • appear to
  • a change of heart
  • a shoulder to cry on
  • a plain Jane
  • a mystery to (one)
  • (one's) game
  • be in high spirits
  • be in high/low spirits
  • be in low spirits
  • be as brown as a berry