A trial that consists of someone trying to eat ten Arby's roast beef sandwiches, usually within an alloted time limit. The contest is most regularly held in conjunction with the "Five for Five Round-up". Also known as "The Arby's Challenge".
Max made it to nine at the last Roast Beef Challenge. Then he vomited at the front of that law firm.
by Nicolast September 6, 2006

by chefdude73 March 20, 2007

The name for a women/girl whos vagina resembles that of a fresh roast beef sandwich, down to every taste curve and turn
by hashinator May 24, 2006

Girl 1: Did you hear about ashlyn?
Girl 2: No! What?
Girl 1: Roast beef and applesauce!
Girl 2: EWWWW! skankkkkk
Girl 2: No! What?
Girl 1: Roast beef and applesauce!
Girl 2: EWWWW! skankkkkk
by Feetz March 31, 2011

From the urban Ohio Univeristy dictionary derived from conversations after long nights on Court Street. Coined by a frat boy residing on Stewart St at OU. Beefing on my stacks refers to someone who is dissing on you, hating or showing you disrespect to you, your stacks or your personal possesions. Other terms that could be used are "why you beefing". Someone who always "beefs of your stacks" is considered a "stack beefer".
Craig: "Dude your room is a mess and we are having a party tonight!"
Chris "Dude, why you beefing on my stacks? I will have the pledges clean it!"
Chris "Dude, why you beefing on my stacks? I will have the pledges clean it!"
by Faitone April 28, 2010

by 44chemkpse May 20, 2008

by King_flakka June 16, 2016
