Someone who makes a bet then upon losing makes up excuses tward the technicalities of the win...oh and they don't pay up.
winner: alright thats game man, now pay up.
loser: are you sure that last move was cool with the rules, i mean...
winner: oh come on..
loser: it was like on the wrong side..and.
winner: oh..dude..you are SUCH A SHANKAPOTOMUS.
loser: i know...