A Sligo kiss is an act of cunnilingus that requires great force and gracelessness. Usually performed more for the benefit of the giver than the receiver.
Kurt: D'jah know how I love atin' shnack box?
Other Kurt: Aye
Kurt: Well Jaysus, I went home with this young one last night and I ended up giving her some fuckin' Sligo kiss.
Other Kurt: Really?
Kurt: Oh yeah, I went through here like she was in the way. I nearly gave her a Rosses point cunt hook.
Acronym: Stay Late And Get Organized. A term used for people who have a need to stay about one minute late in the classroom after a period bell has rung so they can get all their papers, notebooks, pens etc. together in their backpack.