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1.
yvw
Your Very Welcome short hand for when you IM or text someone
yvw = your very welcome
by Nykki November 25, 2006
 
2.
yvw
You're (very) welcome.

Other abbreviations might include: uvw, uw or urw.
"You saved my life man, I really needed your help the other day!"
"yvw"
by ReSpawN May 13, 2013