look up any word, like blumpkin:
 
1.
so drunk death is your near future a trip to the hospital is also an extreme possibility
Dude i was welched last night supposedly i made love to a jar of peanut butter.
I was welched last night, I had to go to the hospital and they stuck a cathater in my pee hole.
by Asianpersuasion012 December 21, 2008
 
2.
evaded reparation or satifaction of a debt, sometimes by citing a technicality
that fucker welched on the Giants - Eagles (he bet they wouldn't cover the spread and they fucking did!)
by danielwebster May 19, 2007
 
3.
Treated someone like the Welsh have been throughout history, that is ripped off. So the winner of a bet may recieve a welsh prize - nothing. From the outdated adjective welsh - meaning disadvantaged(in poverty and fate).
TheTruth : Yeah Dave did win the bet but I think he may be Welsh so it doesnt count.
Dave : I've been welched
by anothermadeupname April 20, 2010