Ever had one of those really uncanny experiences? Then this is the phrase for YOU! Coin is derived from the Latin word 'coincidence' and pronounced 'coy-n'. Use this newly fashionable expression when you've had a strange happenstance and want to appear cooler than the average punk-ass teenager.
Mel: Hey phoebe, I just bought a redskin, LOLEZ
Phoebe: Fo' realz? ME 2!!
Mel: Holy crap, are you goddamn serz?
Phoebe: Heck yeah!
Mel: What a coin!
Phoebe: U suck. Innit.