one who stealthily can steal another's beer. basically a beer ninja is one stealthy m0-fo and can do it right in front of yo face.
Yo digga, tonite i stole a beer and used kim's fat ass as a screen when i leaned over and grabbed it off the fuckin coffee table. I'm a hella sweet beer ninja.
Hahahahaha Dave was so drunk i walked right up to him and stole his beer like 2 feet from his face. fuckin hilarious. Man that makes 2 beers tonite. I'm such a fuckin beer ninja, yo.
Hahahahaha Dave was so drunk i walked right up to him and stole his beer like 2 feet from his face. fuckin hilarious. Man that makes 2 beers tonite. I'm such a fuckin beer ninja, yo.
by jassu19 August 29, 2006

MAn1: bring jamal on halloween
Man2: why
Man1: he is a nigga ninja he cant be seen when we egg peoples houses
Man2: good idea
Man2: why
Man1: he is a nigga ninja he cant be seen when we egg peoples houses
Man2: good idea
by ChrisNaps April 6, 2008

Undeniably one of the sneakiest and scariest ASSassins of the world. Known for being able to PENETRATE the most secure facilities in the world with incredible ease with the sole intention of raping man ass. Butt ninjas have super human abilities allowing them to walk through walls, turn invisible, cling to ceilings, and run faster than light... translation: they will have sex with your butt no matter what.
Bro-1: "I was too afraid to shower at the empty gym last night. I kept thinking I saw a butt ninja out of the corner of my eye."
Bro-2: "That's a lie, a butt ninja would've never gotten spotted by a douche like you. Probably just a normal rapist."
Bro-2: "That's a lie, a butt ninja would've never gotten spotted by a douche like you. Probably just a normal rapist."
by pokstad January 25, 2008

A supreme master of the alcoholic beverage so much so that it becomes a way of life.Someone as stealthy, quick and skillful as he could easily kill u in seconds but instead dedicates his life to getting u wasted.With his flawless recipes and extreme mastery of presentation his drinks may lead to a blissful state of enlightenment.By the time u come to the realization that your bartender may be a ninja bartender its too late.For you are plastered beyond comprehensible belief.
by J-Ody Du-Wright November 15, 2011

Someone who usually doesn't have an accent, but every now and then, an obnoxious one sneaks its way into conversation.
by RobinSparkles1983 August 16, 2010

A term used to define a person who loots the booze off of a party, then soon after leaves.
Can be used as an adj, noun, verb, or adverb if your creative.
Can be used as an adj, noun, verb, or adverb if your creative.
adj: Hey, get back here you booze ninjaing bitch!
noun: Don't let these two booze ninjas in the party.
verb: Man, I booze ninja'd some bitches party.
adverb: Hey, you guys booze ninjaingly stole my booze from my party last night!...? (Im not creative)
noun: Don't let these two booze ninjas in the party.
verb: Man, I booze ninja'd some bitches party.
adverb: Hey, you guys booze ninjaingly stole my booze from my party last night!...? (Im not creative)
by Jay Ko March 28, 2009

A prank that is pulled usually in high school by taking someone's back pack, taking everything out, turning the backpack inside out and putting the stuff back in.
by YarmouthClippers June 13, 2009
