1 definition by SFU Kid

1. Someone who talks way too much, usually about things of no importance or some bull**** that he/she needs the world to hear.

2. Yappers are sometimes prone to violence, but don't worry they only "Yap"
Jim: Hey John, wasn't that lecture so brutal ?
John: It wasn't too bad, the only thing that pissed me off was the Yappers in the back who wouldn't stop interrupting the professor with all their bull****
by SFU Kid January 24, 2013
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