Phase
Used to describe a period in someone's life when they think they are "too cool" to hang out with their slightly stranger, scaldier yet better craic friends. More commonly known as "te phase". People tend to see the light at the end of "te phase" and return, whether by choice or simply due to the abuse they receive from their friends. "Te phase" is not something to be proud of. Those in it tend to care a lot about their image, getting lots of likes on their Facebook photos, and going to the 'cool' peoples' parties.

Note: "Scaldy" is a word to describe someone who does not care about how they look and often have poor personal hygiene. They usually do not brush their hair, have year old braids, and are no strangers to camping at festivals all through the summer. Scaldy is the opposite to being in "te phase".
Person 1: "Hey *insert name here*, you coming to the dinner party tonight with the music gang?"

Phasey Person: "Aw sorry I can't, I don't have enough money."

Person 2: "But it's only in my house, you won't need to be spending any money?"

Phasey Person: "...... Oh yeah .... Ehhh ..... Well to be honest I'm actually going out to a house party with my school friends....."

Person 2: "OH MY GOD!!! YOU'VE BEEN CAUGHT RED-HANDED IN TE PHASE!"

Person 1: "Ughhh such a PHASE!!"