A quick beer. Typically used around 5-6 PM amongst colleagues. People suggesting or agreeing to go for a ninja beer usually have the mutual understanding that one quick beer could lead to many.
John: "Hey guys, let's go for a ninja beer?"
Susan: "I actually have work to do when I get home. Well.. F*ck it; Let's go for a quick one"
by PinkBunny1990 March 12, 2016
Get the ninja beer mug.
A beer that is high in alcohol content, but tastes like a regular beer.
Drunk ass: Yo I thought this was regular piss beer, but this shit snuck up on me like a ninja. I was shit faced before i knew what happened.

Bro: yeah, who gave you that ninja beer?
by Vladivastok March 12, 2011
Get the ninja beer mug.
Little cups of wobbly pop that are sold for insanely low prices at bars on select evenings. Ninja beers sneak up behind you very quietly until BYAHHHHHH....they knock you out cold.
Ninja Beers
"How much are the little guys?"
"a dollar"
"a dollar?? give me five...(ten...fifteen...thirty seven)"
"are you sure?"
"dont you tell me what im capable of drinking"
"oook here you go"
"thanks hot bar lady"

........at this point the Ninja Beer Ninjas are surrounding you waiting for you to drop your guard for the split second they need.....

BBBBBBBBBBBBBBBBBBBBBYAH!

...you wake up 15 hours later outside planet pizza.
by Bhat September 29, 2006
Get the Ninja Beers mug.
A beer you grab when you get home after being out with friends. You quickly take a sip to mask the the booze smell coming out of your pores. Your spouse assumes it's your first one since you just got home and isn't immediately pissed for you being shitfaced drunk.
When I get home the first thing I'm going to do is grab a Ninja Beer from the garage fridge, that way my wife won't know I've been at happy hour for the last 4 hours.
by elpac January 21, 2021
Get the Ninja Beer mug.
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.
by jassu19 August 29, 2006
Get the beer ninja mug.
The person(s) involve in the theft of beer from one party to take back to the party of their own. Once a beer ninja accepts the mission he must complete under any means neccessary. This includes but is not limited to 1)stealing from a friends party, 2)jumping fences, 3) wearing camoflage, 4)kidnapping people, 5) attacking from the sea, and 6)sending in spies to distract parties away from the mass of beer.
Chris: We are out of beer dude
Nick: No shit? Guy down the street is having a party.
Chris: Lets take his beer.
Nick: Its on. Beer Ninja style.
by thenick September 22, 2006
Get the beer ninja mug.
On some college campuses with charitable upperclassmen, the beer ninja performs the opposite function, stealthily distributing Beer to those in need, rather than removing it.
Dude! The beer ninja was just here and gave us all beer!
by TiedownGiant August 15, 2009
Get the Beer Ninja mug.