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1.
nilp is the acronym for "noob i like to pwn" or "noob i like pwning"
That person is such a "nilp."
by Kyle Newton March 14, 2008
 
2.
The word NILP stands for "Noob I'd like to pwn"

The word comes from MILF, or "Mother I'd like to fuck"

Student: "Our math teacher is such a NILP"

Math Teacher: "Grow up"
by Brad Getman March 20, 2008