Engaging in sexual relations with a girl who is so much of a tom-boy that she contains all or part of the male anatomy alongside her female anatomy. While banging this girl you will want to tape or have a close friend hold the ball sack out of the way for maximum pleasure.
Dude you been Ohio Gum slinging with that chickyet?
Slagging is a term used to describe a kind of harsher form of teasing. While this may seem like an insult to some, to the Irish, it's considered a behavior that shows affection or bonding, and, in some cases, is even used as a compliment.
John:*falls down*
Patrick: Jesus, were you born with one leg shorter then the other?
John: Fuck off
Patrick: Calm down, I’m only Slagging you