A 30 pack of Keystone Light. Keystone Light is the beer of choice for college kids since its cheap and tastes much better than Natty Light.
A 30 Stone used to cost $10.99 but now its $11.99.

We got hammered last night, in fact I'm pretty sure we went through 4 30 Stones.

by Woodjablowme March 14, 2008
Get the 30 stone mug.
A measure of the drunkeness of D-Bag in relation to the number of 12 oz. Keystones consumed in a period of time.
D-bag drunk dial: Call 1-800-ATT and get some assclown over here to get me out of the manhole. I'm 30 stones in, and I'm TANKED!!!
by Thugass August 5, 2008
Get the 30 stones in mug.
When a person buys a 30-Pack of 'Stones (Keystone Light) and attempts to drink them all in a set amount of time.
Guy 1- Man, Ryan really tried his best at the 30 stone challenge!!

Guy 2- Yeah, especially since we only gave him 1 hour.

Guy 1- I'm just glad we don't have to clean up that bathroom after he's done...
by rockstar1984 May 3, 2010
Get the 30 Stone Challenge mug.
dude 1: "happy new year"
dude 2: "30 pack a stones!"
example 2.
"what u drinking tonight"
"30 pack a stones! What u drinking?"
by R.J. 21 January 3, 2009
Get the 30 pack a stones mug.