Top definition
a boy who is naggy, sad, or mean. one who does not talk to his girlfriend when they are on the phone. likes to pout. used in the movie finding nemo!
ugh, zachary! stop being a mister grumpy gills! you big derk!

talk to me, mister grumpy gills!
by 90209zach! January 14, 2010
Get the mug
Get a mister grumpy gills mug for your cat Rihanna.