Short for serial number. Often used for an illegal method of registering a program one does not wish to pay for.
I got a serial for photoshop last night and it worked perfectly.
by Invalid H. User April 24, 2003
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a gun's serial number...often scraped off to make the gun harder to trace
"serial killers tote guns without the serials"
--Streetlife in Rules (Iron Flag, Wu-Tang Clan)
by dubhex February 2, 2008
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being very serious; dead serious.
John: "I scored with Kelly last night, it was TIGHT! man!"
Jeff: "You serial?"
John: "Hell yeah!"
Jeff: "With trix?" (aka: you're bullshitting)
John: 'No, I'm for real!"
Jeff: "Dam, mofo! Hell yeah!"
by Olgie March 30, 2010
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A pointlessly painful way for intellectuals to pretend that they can write so-called music. Enjoyed by people who, for instance, place bits of cow turd onto the end of a stick and hang it above their mantelpiece, asserting that it is a metaphor for existentialism in Barnsley.
Serialism is painful rubbish.
by Viola Tragic July 22, 2006
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Serial killer serious... like serious with no turning back.

This kind of serious is not to be brushed off... it's life n death seriousness!
Serially, you need to lose the man bun.

I'm sorry I can't be part of your koolaid drinking party...serially.
by Digi Dave March 19, 2018
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after droppin those six niggas we jus started callin him serial
by S. Loc January 8, 2004
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"yo, do you see that serial looking dude gazing us from that window over there?"
by stebbins January 2, 2005
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