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 From the outdated adjective welsh - meaning disadvantaged(in poverty and fate).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
"after she talked about her problematic incest loving loser of a husband/boyfriend/baby's daddy for 10 friggin hours, I got tired and called her a stupid wenched bitch"
"you're wenched.deal with it and take care of your didnt asked to be here friggin kids you stupid fuckin slut wannabe""get a LIBRARY card, educate yourself with USEFUL material,and stop being such a fried fake and baked" cried LaLa in utter DISGUST