a "street" expression of agreement or approval
person #1: yo, check my new track!
::music plays::
person #2: merlin!
by jonachel September 22, 2007
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Merlin hates theirselves. They try to be funny. TRY. They're also dickhead attention whores.
Merlin : I'm sad. :(
Someone : Why?
Merlin : My shoes got untied somehow.

Someone : *looks down
Merlin : *shows circle finger.
*Merlin gets punched in the face.
by Lil' fagit January 7, 2019
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a person who is highly fascinated with magic and fantasy, particularly someone who lives it as a reality by playing dungeons and dragons or magic the gathering.
That dude over there in the park pretending to sword fight is such a "merlin"!
by jcore78 December 13, 2007
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Merlin's are paler then snow and their eyes can be as far as 3 feet apart. Although they may look like a whiter version of Pepe don't let their looks deceive you, they are multiple times smarter then Pepe with an IQ of 65 and have the problem solving of a potato. When losing in a argument Merlin's will try to use tactics like raising of the voice and will also try to spit out random facts to convince you that you're wrong. Most Merlin's are very annoying and suck at everything they do. But be wary, any contact with Merlin's will surely drop your IQ.
"Oh look at that feminist over there, she is pulling a Merlin ; better not get in her way."

"Oh hey, look it's Merlin ; don't get to close or you'll have a nasty surprise."
by Merlin Reinders August 26, 2018
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a homosexual action in which a male puts his testicles into another mans mouth; named after the wizard Merlin in Harry Potter in respects to it being so hard to put another man's genitals in anothers mouth you must be Merlin
When Anthony merlined me last night, it was the best feeling I have ever had!
by Z. Diddy August 27, 2009
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someone or something that is adorable, but specifically in the way that really old things are, which is why it is named for the famously old wizard Merlin. Can also be abbreviated to "Merls".
Friend: "my grandpa called last night to say how sad he is that Hillary Clinton won't be President. He said all he wanted was a female president in his lifetime and he's afraid he missed his only chance."
Me: "What a Merlin! My grandpa just spouts racist shit while farting."

"That puppy over there is giving us the puppy eyes, what a little Merls."
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An exclamation from Harry Potter which is similar to "Oh Lord!"
"He just shat his pants!!"

"Merlin's Beard!!!"
by Merlin Himself May 26, 2009
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