Someone who keeps their mouth open, often with tongue sticking out; appearing mentally deficient. Implying the person has brain damage or is mentally deficient.
All his friends were idiots and morons; the biggest collection of open-mouth breathers I've ever seen.
Prices shown in USD.
Log in with Facebook to save your favorite definitions
and share them with friends.
Vul hier je e-mailadres in en ontvang elke ochtend gratis het Urban Word of the Day!
Je zal emails ontvangen van email@example.com. We zullen je niet spammen.