A play off the term, "on like Donkey Kong", its "on like Shinobi" carries a subtle and abstract humor based on the fact that it completely doesn't rhyme, doesn't have the right amount of syllables for the format of this terminology and was a much, much less popular game.
"Motherf*cker, did you just put your cigarette butt in my beer?"
Yeah, bitch, I heard you like drinking butt!"
"Oh f*ck that..."Its on like Shinobi!"
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