Not liking something but understanding that it has to be accepted (sometimes) or it has to exist.
Nimueh says that money creates many problems but he cannot imagine ehat the world would be like without it. This is a necessary evil.
by xsweet_vengeancex October 20, 2011
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An unwanted boner used for the express purpose of shutting some dumb bitch up.
I didn't want to get one, but it was a necessary erection if I had hopes of shutting that hoe up.
by Jaiger March 15, 2011
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Usually a petite girl who is very good at hiding all emotions. She isn't just a snack, she's a whole ass meal. She probably has freckles that are adorable enough that most people could spend hours counting them. She is very deserving of Sam's love, which is hard to come by. She found herself a keeper in Sam.
"I'm sad, I wish Morgan Necessary was here to cuddle with me" - Sam
by YourLover2041 November 7, 2019
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a girl who collects photos of people who are vomiting for her own sexual gratification after getting them drunk
by broken lady November 20, 2010
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1)A common phrase in the advertising world - which gives rise to interesting loopholes - which tends to mean that you need not make a purchase to be counted as a contestant in an event.

2)Also, generally is a lie and means if you don't purchase but wanter to enter a contest, they'll send you a form to make you "feel" like a contestant.
The Sprite "under the cap" game said "no purchase necessary" right on the bottle, so Justin and David opened up all the bottles in the store and kept only the winners.
by Justin 47 Nishi November 4, 2004
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Something, someone, or some event that is so unnecessary that it becomes necessary.
It is effectively a way of allowing you to be a total dick, for no reason, and when questioned about your unnecessary outburst you can shrug it off as being negatively-necessary.
Negatively-necessary is in fact negatively-necessary itself.
Example 1
Marcus 'Wtf Ben why did you draw that dick and label it Marcus, what did I ever do to you?'
Richard 'Yeah dude, that was totally unnecessary.'
Ben 'It was so unnecessary it was negatively-necessary.'
Marcus 'Oh, fairplay.'

Example 2
Unnecessary censorship has become so unnecessary it is now necessary for entertainment, unnecessary censorship is negatively-necessary.
by BCCOKFCUK June 9, 2009
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a briefcase of money and a briefcase of drugs.
When I move out of a place I only take the necessary items.
by rulin May 29, 2005
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