someone who operates a bicycle in dark or low light conditions with no lights or reflectors and usually wearing dark clothing. Ninja cyclists typically ride against traffic and/or on sidewalks in violation of local laws.
(after slamming on brakes) "I didnt even see that ninja cyclist blow that stop sign. I could have hit him"
by Bike Man November 03, 2009
To masturbate/fap silently.
Dave: Why is fapping called fapping?
Max: Because fap is the noise it makes.
Dave: I've never heard that before ..., I must be some kind of ninja fapper
Max: Because fap is the noise it makes.
Dave: I've never heard that before ..., I must be some kind of ninja fapper
by honkthedonk January 17, 2013
(noun) Someone who sneaks rubbish and into their neighbours' bins when their own bins are full. A bin ninja usually comes after a large gathering has filled a houses garbage receptacles. The act generally occurs at night and requires much sneaking about.
(verb) To bin ninja something.
(verb) To bin ninja something.
"Man. That party was epic. What are we going to do with all these empties...the bins are full!"
"No worries man. We'll just bin ninja them into everyone else's bins tonight."
"No worries man. We'll just bin ninja them into everyone else's bins tonight."
by billybobboy June 02, 2014
In Oregon Trail II, this term is used when someone in your wagon party dies inexplicably from cholera.
by A Dysentery Germ September 24, 2016
When you send someone a naked picture of themselves that they don't know you took. Especially useful as a pick-up technique.
"Dude, Anna just sent me a ninja sext!!"
"What do you mean?"
"She just sent me a picture of MY penis, but I've never been naked in front of her? WTF??"
"True ninja broseph. She's a ninja sext master."
"What do you mean?"
"She just sent me a picture of MY penis, but I've never been naked in front of her? WTF??"
"True ninja broseph. She's a ninja sext master."
by Ninjasextmaster69 May 23, 2011
(noun) 1. a player of the online FPS Infiltration who displays a marked ability to kill an opponent with great speed at close ranges. often while armed with a knife.
2. a player that fires on opposition forces to great effect, while moving or concealed in deep shadows.
3. a player who kills most or all of the enemy team without being shot or disabled. Often a veteran that is picking up slack for a noob and deserves praise.
4. a skilled INF player who commands respect, despite using overt tactics.
5. used derogatorily towards players that uses cheap or cheesy ambush tactics that do not reveal their location. Also a player that does not give quarter, especially in the first few seconds of combat, when quarter may be due.
6. any person or object stealthy, skilled, armed with a gun, treacherous or otherwise similar to an INF ninja.
2. a player that fires on opposition forces to great effect, while moving or concealed in deep shadows.
3. a player who kills most or all of the enemy team without being shot or disabled. Often a veteran that is picking up slack for a noob and deserves praise.
4. a skilled INF player who commands respect, despite using overt tactics.
5. used derogatorily towards players that uses cheap or cheesy ambush tactics that do not reveal their location. Also a player that does not give quarter, especially in the first few seconds of combat, when quarter may be due.
6. any person or object stealthy, skilled, armed with a gun, treacherous or otherwise similar to an INF ninja.
1. Dude, no way you can kill him with that knife. Holy shit you just did! you are an INF ninja!
2. Who, I almost shot you man. you're an INF ninja in those shadows.
3. Oh snaps! our INF ninja is taking tan-team OUT!!
4. Watch out, that guy with the SAW is an INF ninja.
5. Arg! I take ten steps and I'm dead. Damn INF ninjas!
6. Man, those guys in the film Returner were INF ninjas.
2. Who, I almost shot you man. you're an INF ninja in those shadows.
3. Oh snaps! our INF ninja is taking tan-team OUT!!
4. Watch out, that guy with the SAW is an INF ninja.
5. Arg! I take ten steps and I'm dead. Damn INF ninjas!
6. Man, those guys in the film Returner were INF ninjas.
by Lt. August 10, 2004