Top Definition
the act of taking two 15 inch black dildos and tieing them together with a string like nunchucks. while shiving one up your ass you then swing the free dildo around and sneak up behind your partner and hit them with it. thus creating a ninja like expirience.
i gave The Urban Ninja to my boyfriend last night because he said i wasnt adventurous enough.
by The Urban Flame February 05, 2011

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