When you ( a male) is having sex with two other people ( male or female) and you fuck them in the butts back to back. Hence, you see an ASS, you see an ASS, and you went IN, or assassin ( which is a word used to describe a ninja).
Joe Schmoe: Hey bro, I just had a consecutive buttsex with these two smoking hot chicks last night
Douchebag Dan: Duuuuuude! You just had a Ninja Fuck!!!
Joe: Totally gnarly dude!!
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Pro_Skater is the assistant ninja of _Yuna_ and KJM.
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when fucking a girl doggystyle, right before you are about to cum, give her a charlie horse up the ass. Swiftly move at ninjaspeed in front of her and slap her with your extremely sharp penis while you cum on her face leaving a shuriken shaped mark on her face. Proceed to leave the room QUICKLY by setting off smoke bombs and blending in with the enviroment.
Dude, I made that bitch bleed with an ninja suprise last night
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A person, so awesome they amaze every person who sees them... they also have horrible B.O. and breath that smells like Tuna, so you are reluctant to approach them but always enjoy there awesomness from afar.
"Carl is so awesome! but he's more of a ninja tuna, so I don't hang out with him."
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The ninja turtles lived in the sewers, therefore they MUST smell like absolute SHIT. So when you pick up a stench that is so bad you can't think of anything worse it must be that the ninja turtles are at your house.
Ashton: "Keisha what the fuck is that smell?"
Keisha: "Fucking Ninja Turtles!"
Ashton: "RIGHT RIGHT"
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A Juggalo from the GATHERING OF 2006 that was saying "FUCK THE HILL"that threw mud faygo And even got into fist fights all over a little mud LOL these are true SWAMP NINJAS and they will be for life
"FUCK THE HILL",when i say swamp u say whoop whoop,magic magic swamp ninja whut.
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A weed ninja is someone who, when under the unfluence of pot, takes on the persona of a ninja. He thinks himself to be super sneaky but he is not. A weed ninja is known to tell people via text or bb messenger, that he is infact, a weed ninja.
When that guy gets high, he becomes a total weed ninja
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