Term used for an unusually rude and arrogant person. Typically known for crawfishing on bets.
Guy 1 wins a bet, and says, "That was close! Good effort but somebody has to come out on top..." Guy 2(loser of the bet) says, "Whatever I'm not paying you, you just got lucky besides your ugly!" Guy 3 says, "Wow Guy 2 is acting kinda Markish"