And by phrases I generally mean Americanisms. Generally you dont hear them much in the real world but theres a shocking amount of boards folk who use them:
Sausagefest- meh

I dunno, theres just something so California surfer cowabunga dude about it that makes me annoyed.
Fcuk buddy- this is Dublin. Not Manhattan with the Sex in the City crowd. Shes not a fcuk buddy, shes a bird you are occasionally poking but who you arent going out with because she isnt the best looking. Saying fcuk buddy neither makes her better looking nor makes you trendier, it merely makes you a sell out and poser.
Whos humping an ugly piece.
QFT- alright, its net exclusive, but Ive only seen it over the last few months and its retarded.
"Mom"- or more specifically, Irish people referring to the oul one as Mom.
"Random"- as in "this is so, like, random". Only heard it within the past year, and only from college students or D4s, who generally seem to use it to describe anything that is unplanned e.g. "wow, this is like, such a random party" or "this night is, like, sooo random". Where did it come from? Wrecks me tits.
Any more? hmm, I was discussing this with a mate earlier and came up with at least six