A very unique, and amazing name that could only belong to a very amazin guy. This guy is most likely the best guy you could ever meet. Tall, strong, handsome, sweet, nice, and perfect. He is ever woman's dream man.
I can't believe I am going out with the most amazing guy, Castin!!!
by volleyqueen13 June 16, 2011
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The boy that is fun to be around but also confusing. He's a very pretty person, but also someone to be jealous of you can't seem to forget a Castin. It might be his grown out blonde hair or his obsession with fight club.
"Did you know Castin burnt his hand because of Tyler Durden?"

"What why would he do that??"

"Because he's literally Tyler".
by Luxlisbonihatemom January 18, 2023
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beautiful girl who is probably mad at you right now...

She probably doesn't know how lovely she is,

Unlike the stupid and misleading definitions would have you believe,
Castin is not some kind of boat or a tall dude who sounds suspiciously like Superman,
Though it must be noted that a Castin is notorious for disliking crows (even though mah boi itachi rocks them) and any type of music which involves someone yelling random words at the the audience.
Nathan ; Castin will you go out with me?
Girl ; (without hesitation ) yes
*a Andy walks by
Girl ; Nathan but only as friends/ gayfriends
(friendzone)
Nathan ; that girl is gorgeous
Andy ;yep...
Nathan ; (wont stop staring)...
Andy ; bud im outta here before we get a restraining order.
Andy ;That girl right there wifeable ,she gonna be my girlfriend.
Nathan ;she must be a Castin ..
*both continue to stare from the distance Castin calls the cops
by Sven(definitelynotAndy) August 15, 2021
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A ship name for Anna camp and Skylar astin | camp x astin = castin
my favorite couple ship name is castin!!
by castinsoulmates7 March 4, 2021
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