Short-hand for "Yeah, Yeah, Woo!", an exclamation conferring the feeling of excitement while, at the same time, ending a conversation.

Typically used to terminally punctuate just about any tele-mobile-phone text or electronic chat.
Praise the lord, we're finally done with that dreaded renal pathophysiology exam tomorrow. Whew! I am really excited for getting completely obliterated afterwards. Alright sucka, G-chat you later! YYW!
by Thomas Suszynski February 21, 2008
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An acronym used to say "yeah yeah, whatever," when you just dont care enough to write more than 4 little letters to express your lack of emotion.
by LadyLynn July 11, 2010
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'Yeah yeah whatever'. A way to dismiss someone or something which is boring. Originated on the net. Said: 'Why Why Woo'.
'OMG did you see those pictures of Avril Lavigne looking like a skanky little ho bag?'

'yyw, Avrils so summer '04'
by YES YES July 7, 2005
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