Just enough to win the prize (unmentionable sports)

Rastus came home with a big silver cup prize and his wife Lulubelle asks...Rastus, lawksakes where y've gone an winnin' such a big silver cup.

Well Lulubelle, he replies I goes in fer dis competition ya see where us manfolk display ours manhood and I's win it...

Lulubelle is shocked and voices her distaste...Rastus, lawksakes you don't mean you're bin showin all of that big dogone tool of yours....

Oh no Lulubelle he replies, I aint...just 'nough to win the prize!!!!

 glad you got that off your chest!