Having sex quietly, sneaky, undetected
by GetSome515 February 6, 2012
Get the Ninja Smashin'mug. A person sent in deliberately to have sex with someone's girlfriend with the intention of her significant other catching them in the act so he breaks up with her.
by TK37246 February 12, 2014
Get the Penis Ninjamug. I saw the FedEx truck leaving my driveway and realized he'd done a ninja drop. He almost got away with it.
by GreenEgg78 January 27, 2019
Get the Ninja Dropmug. by JJSweetBags May 16, 2007
Get the Ninja Rammug. A ninja who has trained in the art of ramen noodles. Ramen Ninjas are adept at stealing delicious ramen under the cover of darkness, handling hot bowls of ramen without making a sound or dropping them, and using various ramen ingredients as lethal weapons.
1: Hey, I'm hungry.
2: Let's get some ramen!
1: But how? It's night and we'll get in trouble if we wake someone up!
2: No problem. I'm a Ramen Ninja.
2: Let's get some ramen!
1: But how? It's night and we'll get in trouble if we wake someone up!
2: No problem. I'm a Ramen Ninja.
by Proudryukin the Short July 18, 2012
Get the Ramen Ninjamug. by kayden omniverse January 13, 2018
Get the shadow ninjamug. Person who does not ever buy weed, but always smokes others. Mooching off of smoking circles or other social groups.
"Was Roy at the party?"
"Yeah man, he was a Grass Ninja like always and smoked all our weed and left."
"Yeah man, he was a Grass Ninja like always and smoked all our weed and left."
by ThatGuy85 March 29, 2016
Get the grass ninjamug.