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1.
the material used to make bulletproof vests
his kevlar vest stopped the bullet from killing him
by ShinDragonZ April 04, 2003
 
2.
Material that is actually nylon streched very thin, which makes it much tougher. Used in everything from bullet-proof vests to gun stocks.
I only where about ten layers of kevlar. I hope that can stop a shotgun blast.
by Galloping Ghost June 05, 2005
 
3.
1. A material used in bullet-proof vest.
2. A crappy first boss in TRUE CRIME: NEW WORK CITY (spelled 'Kev-Lar').
1. "If it wasn't for this Kevlar, I'd be dead by now!"
2. "Jesus Christ, Kev-Lar's a stupid fucking character. I'm glad Marcus blew his fucking brains out with an Uzi."
by John Peplow, a.k.a Comrade 47 March 02, 2008
 
4.
1. Military extension of helmet meaning someone who rides the short bus and thus needs a helmet for safety. Used when the person being so named might catch on to the civilian slang use.

2. Also used in the context of Kevlar being dense but light-weight implying the subject is dense and a intellectual light-weight.
"Hey, Kevlar, I need you to go get me a box of chem-light batteries!"
by zArkham4269 September 09, 2009
 
5.
my dogs name! o also a materal they put is hydroplane boats and you where kevlar while raceing a hydroplane boad it helps u float if u fall out!
1. come here kevlar!
2.the kevlar helped me float whene i fell out of a boat it saved my life!
by jessica May 31, 2004