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Method of oral contraception, where the man pulls out and shoves it down the girls neck during ejaculation. 100% effective at preventing pregnancy.
I don't have any condoms but I practice Plan N, were safe.
by Dragikaze November 28, 2016
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Aug 11 Word of the Day
A phrase to describe someone who is cognitively degenerating. Synonym of "going off the deep end". Can have varying degrees of severity.

Reference to the song "Hey You" by Pink Floyd. The line "and the worms ate into his brain" makes no sense in an otherwise linear and literal narration throughout the lyrics.
"My boyfriend has a total case of brain worms. He told me the cat was bugged so the Feds could listen in on us having sex..."

or

"You totally stumbled over that entire sentence. Can't speak English all of a sudden? What, do you have brain worms?"
by _Jez_ October 03, 2009
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2
All the other plans failed, and you have to resort to any way possible to eliminate remaining Africans.
"Boys look, Plan M failed, we have to resort to Plan N."
by kid.9.6 April 15, 2020
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