The act of hunting for sluts for one night stands. Shlunting is usually performed in dark, loud, crowded bars that play the kind of terrible music that guys will only tolerate because it attracts sluts.
Jacques: What are you doing tonight?
Pete: I'm going shlunting at Infernos.
Jacques: On a Tuesday?
Pete: Yeah, bro. Shlunting is my life.
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