A bit of hair that grows under the cheeks and next to, but separated from, the moustache.
Found on people who have yet to develop a full face of hair, or who naturally have patchy beard growth.
You should shave those mouchees man, you look like a reject from a Cats musical.
normally associated with the moustache but is also used for beards, goatees and such other facial hair. other words often used which can relate or be similar are mouch, moucho gusto, mr mouchy, mouchyman, butchy mouchy and sometimes a treacherous mouchy.