v. (also welch) 1 (of a loser of a bet, esp. a bookmaker) decamp without paying. 2 evade an obligation. 3 (foll. by on) a fail to carry out a promise to (a person). b fail to honour (an obligation). [origin unknown]
v. (also welch) 1 (of a loser of a bet, esp. a bookmaker) decamp without paying. 2 evade an obligation. 3 (foll. by on) a fail to carry out a promise to (a person). b fail to honour (an obligation). [origin unknown]