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]
The American Heritage® Idioms Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.