Comes after "boggin" in the descriptive scale of good to bad. Something boggin would insight disapproval and disgust, where as something houfin would likely encourage an unwanted physical response, ie. give you the boak!
me: heeeuuuw..... heeeuuuw..... heeeuuuwewew....
pal: whats up wi your puss?
me: just stood on that rat man it's totally houfin, burst open wi these maggots an shit aw wrigglin aboot, pure gien me the dry boke like!!