Nerp is a word invented by a small group of females in the Northeastern Colorado area. It eventually caught on throughout the midwest and it's definition has been altered in many blasphemous ways. The original definition of "Nerp" was an acronym which meant "Never Eat Rice Pudding." It meant that there was "NERP on top of a chicken, or chicken on top of NERP." Nerp was therefore occasionally an unknown substance which could be alternately underneath or on top of a (live) chicken. There were variations among the original users, such as "NERPing" which roughly meant "messing about because one was bored." Nerp was occasionally substituted for other words, as appropriate to the situation and sentence content.
"I'm feeling rather NERPy today."
"I'm not doing anything today, man, except NERPing."
"Do not misuse the NERP!"
by Ali L. March 27, 2008

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Top Definition
variation of "nope" which is slang for "no".
1: you goin to the movies tonight dude?
2: nerp.
by jaaaasmin August 30, 2007

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Nerps - almost always used in the plural, when referring to a set of nipples.
She had chewy nerps.
by Judster October 10, 2004

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(adj.) A Nefarious Twerp, or a Nerp, is a loud-mouthed individual with an over-inflated opinion of him or herself, who forces uncomfortable small talk in lifts or tight spaces. Experts in saying absolutely nothing in a lot of words. Typically comes in the form of a recruitment consultant, estate agent or a sales executive.
"I ran into John again in the lift on Floor 2, the doors didn't close in time"

"What a Nerp!"
by TomatoPotatoTomatoPotato1234 January 22, 2016

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the state of being a retarded llama.
you're such a freaking nerp.
by whitneywoodallisanerp. April 17, 2011

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When you're hanging out (usually with a bunch of people of the same sex) and you start acting weird because you are either tired or excited. For girls, an example could be laughing uncontrollably at something that isn't funny. For guys, an example would be rockin out to N'sync or Lady Gaga without caring about who sees you/being made fun of. In general, going crazy.
Dude, Joe's singing 'I kissed a girl' off-key at the top of his lungs.
--I know, he's nerping right now.
by hiflyer65 June 08, 2009

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A term used to describe surprise, boredom, or fascination.
Julia screamed "Nerp!" when Erick put his finger in the wrong hole.
by donotello August 17, 2005

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to ejaculate
Dude, she let me nerp on her boobs!
by Big D February 20, 2004

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