Any person who is so stupid that they don't have the ability to breathe out of their nose.
A person who cannot cut over a 35 on their ASVAB.
Somebody who's lower lip is so big that it can be caught on a trip wire due to the over breathing through the only orifice they know how to breathe out of.
Mike isn't quite a Glass Licker, however we'll give him the status of Mouth Breather because he got a 25 on his ASVAB.
Josh is a Mouth Breather. His girlfriend, who's been sleeping around with half of the state, has him fooled into believing they will get married.
Josh says he gets 5,000 dollars a month hauling milk... what a mouth breather.
Prices shown in USD.
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