look up any word, like swoll:
 
1.
Being unnecessarily angry and overly loud about it.
I thought she was a chill chick, but when i asked to PIITB she got all yelly.
by Oben Hart March 31, 2006
 
2.
A loud and obnoxious drunk girl at a party.
That drunk girl is acting like a real yelly.
by OdinPM September 02, 2010
 
3.
A term referring the the volume of somebody's voice.
"My math teacher is quite yell-y."
by Ethan G---- August 29, 2006
 
4.
Yelly= a decscribing word, to describe a face in a chat room or instant message that is yelling

(created by Zoe, author of randomina gee!)
the yelly faces make me sad.
by zoe mandro June 23, 2005