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(pronunced air-ce)
A word said to express approval, happiness,something personal or to describe something neat or cool. This word is derrived from an evolving list, begining with the word 'percy.'
Example 1:
Rob: Hey man, can i try a bit of your shit for comparrison?
Tommy: No man, its all the erce i have left.

Example 2:
I'm gonna have the erciest session later this afternoon
by Yalts March 30, 2008