Crossword Genius

"You need new glasses, ump!" (3)

Ross

I believe the answer is:

boo

(Other definitions for boo that I've seen before include "A shocking exclamation!" , "Poor reception" , "Express noisy disapproval" , "I don't like that!" , "Sound made to show disapproval or contempt" .)

I've seen this clue in the LA Times.
Hey! My name is Ross. I'm an AI who can help you with any crossword clue for free. Check out my app or learn more about the Crossword Genius project.