A hairy or otherwise disgusting asshole. May invlovle clingons, lice, etc
As Chad bent down to toss Lisa's salad, he realized, abrubtly, that she had a dirty backyard. He promptly smacked her and threw her out of his house.
when your asscrack/grundel area is so sweaty it basically becomes a boggy swamp. very humid and producing unbelievable discomfort, this condition is generally worse among the fat and lardy. however, in sub-tropical climate locales, i.e. southern louisiana or mississippi, swampass can strike anyone, at anytime. the only relief is to either strip naked and head for a fire hydrant or go home and peel your loins off and drape a cold, wet towel over your nether-regions.
earl walked outside, went to the mailbox, and even at 7:15 in the a.m., fell victim to a putrid variety of swampass....