A regular at Keystone Resort, Colorado and who enjoys a large amount of Mary Jane, simultaneously.

A test that is taken in some high school classes in Pennsylvania. AKA: Keystone Exams

usually refering to keystone light...

Introduced in 1989, Keystone Light is a light-bodied, crisp, smooth and drinkable beer. Keystone Light is available nationwide in cans, bottles and kegs.  Keystone Light is 4.2 percent alcohol by volume and has 104 calories per 12-ounce serving.

Awards

2005 Great American Beer Festival bronze medalist, American-Style Light Lager
2003 North American Beer Awards bronze medalist, American Light Lager
1991 Great American Beer Festival gold medalist, American Light Lager
1991 Great American Beer Festival bronze medalist, American Lager

(coors brewing company web site)

Cheap beer, it's actually coors light brewed 1/1,000,000 of a degree of thus decreasing the beverage in value so it's about 10 bucks a case.

The central wedge-shaped stone of an arch that locks its parts together.

a person who went to a small school in knox, pa. there favorite activities include getting stoned going to class and eating lunch eating lunch and going to votech or jus skip . then after school getting stoned with friends and chill

A clueless touron from Pennsylvania (nickname: the Keystone State), usually from some obscure small town in central PA, who vacations in Ocean City in the summer and drives like a complete and total jackass on Coastal Highway, blocking traffic by going 20 MPH or less, not paying attention to anyone else around them, and cutting across three lanes of traffic without warning to make a turn (a.k.a., a "Pennsylvania left-hand turn"). They are also infamous for asking idiotic questions like "Where's the beach?", "How do I get to the Boardwalk?", and "Have you ever heard of a place called Seacrets?".