Degenerates hoping to make a quick buck on the Nathan's Hot Dog Eating Contest are in luck ... TMZ Sports has learned there's a (b)unbelievable amount of prop bets on the board for Friday!!
The guys over at BetOnline.ag tell us ... there are double-digit topics gamblers can place wagers on -- including whether or not a contestant will vomit.
"Yes" odds for the throw-up were set at 6/1, meaning if an upchuck happens, fans can get $6 for every $1 they bet.