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6.
An exclamation meaning: affirmative, cool or implying understanding.
Q: "Did you see the game last night?"
A: "Mervins!"

Q: "Hey, you wanna scoop a bean for this evening?"
A: "Word, Mervins"
by Rawberta Doggins November 17, 2009
 
1.
a wedgie from both sides usually done by two cool people to nerds and geeks who wear tighty whities
that nerd ticked me off so my friend and I gave him a mervin
by person66666666666666666 March 15, 2006
 
2.
The term Mervin, Merv and Vin is used to describe someone who is funny, interesting, mysterious and dependable. It can also be used to describe a situation or effect by some kind of force that attracts a multiple girls around him "The Mervin or Merv effect". It can also be confused with Marvin, Merlin and Melvin.
That Mervin is being flocked again by the girls.

You're such a Mervin.

Nice one Merv!
by Mathew Del Monte January 21, 2010
 
3.
When someone, or more frequently two persons, get on either side of you, grab your underwear (emphasis whitey tighteys) and lift up, essentially leaving you hanging in mid air via your underwear.

The trench is violated, if ya know what I mean.
I gave my cousin a mervin on Christmas Eve. Immaculate conception THAT!
by Yavo November 13, 2003
 
4.
The scientific term for the movement made by men in order to create space in their trousers caused by excessive "baggage." Can be executed in a variety of ways and can be integrated into songs and dances, such as "Crank dat Mervin" and "Pop, Lock, and Mervin."
In a quick and sly move, Thomas pulled a Mervin in order to avoid letting his date know of his troubling space issues.
by DGil2014 November 21, 2010
 
5.
A front wedgie, especially in the how you say.... Pussy.
Helen's thong style panties were so small it was forcing her to pull out Mervins all day, her poor cat must have been quite annoyed and/or chaffed.
by We are Siamese if you please September 01, 2013
 
7.
A term used for getting drunk or under the influence of a substance.

Ex: "Man I was so mervined last night!"

/or it can be used in the sense of someone getting owned, beat really bad, or worked at something.

Ex: "That guy just got mervined so hard!"
Wow did I ever just get merved.

Mervin, am I ever mervined rite now
by RichardDaniels January 25, 2011