to avoid doing something you have promised to do, especially not to pay a debt
Marty got his thumbs broken by Vito after he welched on a gambling debt.
作者 contractorpeon 2005年3月02日
To "black flag".

Meaning to make a bet, and lose it. Then not follow through with the consequences.
YOU: "I'll make a bet that Carlton suck and miss the 8, loser has to suck Suzis penis."

BlackFlag: "Carlton will win the premiership you douche, i'll take your bet"

Carlton go on to stink up the entire competition, blackflag loses the bet, and ignores that the bet was ever placed. Making him a dirty welch and the lowest form of life in the universe.
作者 Blissid 2010年4月28日
To welch. To go back on your word. A highly derogatory word made popular through the be-mag messageboard crew in response to wirolla's act of cowardice.
Wirolla had two options; tits or GTFO. He welched, he chose the second option.
作者 gatsby. 2008年9月04日
A bear
The Welch ate the human that got too close to its cubs.
作者 tittieballs 2011年1月26日
Another Way To Define Graped
Welches=Brand Of Grape Juice
You Just graped A Friend
You, To Friend:You Want Some WELCHES With That?
作者 Leak 2005年10月05日
a term of measurement for tea.
This bottle contains two welchs of tea.
作者 danbarton 2009年4月01日
purple weed. ie: grapes.
Yo, I got dem welches!
作者 Lowki 2006年4月28日

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