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1.
v. To sneak; to attempt to move in a stealthy manner, usually poorly. From "ninja" and Flonne in Disgaea.
"I should not have to nin-nin-nin my goddamn cursor past a rollover popup just to read my mail."

"He nin-nin-nin-ed his way past me...right until he fell down the stairs."
by chibi_trillian April 04, 2005