What is Sierra Miller?
1.
A: An Alchoholic Drink, made from a 50-50 Cocktail of Sierra Mist and Miller. - NOT Miller Light, that shit just tastes nasty.
B: To Royally fuck with someones head (Mentally, and with a hangover)
We were running out of beer for Beer Pong... so we added some Sierra Mist and just went
Yeah.... I got Sierra Millered...
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When you signoff of AOL Instant Messenger and never sign on again. This usually occurs in the early to mid twenties when people decide t..