a frog in (one's) throat
The feeling that something is caught or stuck in one's throat. Could refer to actual hoarseness or the inability to speak due to fear. This cold has left me with such a frog in my throat that I can barely talk! A: "Elise couldn't say a word in the meeting and looked completely terrified." B: "Man, she must have had a frog in her throat."
frog in one's throat
Hoarseness or phlegm in the throat, as in Can you understand me? I've got a frog in my throat. This expression probably owes its origin to the froglike croaks produced by a person with a sore throat. [c. 1900]