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 April 1, 2006
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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
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A loud and obnoxious drunk girl at a party.
That drunk girl is acting like a real yelly.
by OdinPM September 3, 2010
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yelli is usually a hot black qirl (= usually looks innocent but has another side to her . she thinks higly of herself but never conceited . friendly, & also great in bedd :
damn she finee, she's definetly a yelli (:
by yellibOo x3 December 10, 2008
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Yelly is when someone yells all the time
“Why you so yelly?”
by Cmoneyyy28$ August 12, 2020
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An amazing girl who loves TV and Sims and is very pretty and has an amazing sense of style. She's very slim and can be a ninja when paired with an Izzy.
Bob: Look at her go with that girl, she's so amazing! She must be a Yellie!
by ohmygodeverynameistakenup August 4, 2012
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