I think if you're in college, the way to collect such songs is to hang out with Rugby players.

When my daughter was a college freshman, she got invited to a rugby dinner, but was warned that some of the songs they sang were pretty raw. Well, after they had sung one of the rawer ones, everyone sort of looked at her to see if she would blush, or faint, or whatever. She said: "but you left out the verse about the parson and the goat!..." or something to that effect. When they asked how she new the song, she said "from my father, or maybe my mother...not sure..."

Peter.