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8.
sig
Short for "signature". Most recently used in relation to forum signature images.
Person 1: Have you been over to Allen's sig shop yet on the forums?
Person 2 (proudly): Not yet... I'm still using the sig from the last forum I was admin of.
Person 1: Dude... It's a pic of a baby in a diaper... This forum is about high-powered weaponry... Get a new sig, man.
by A. Prog. August 17, 2011
 
9.
sig
an abbreviation of significant other
Hey Hilary, you and the sig should really come over for a threesome.
by 101000001 August 17, 2007
 
10.
sig
To talk shit to someone. Origin: VALLEJO, CALIFORNIA.
That man was tryin to sig on me so I hit the fool in his mouth.
by H22CL December 22, 2005
 
11.
SIG
SIG is a Service Industry Girl. This includes bartenders, waitresses, hostesses, etc.
Man, I can't get any sleep because of this SIG I'm dating. She never gets off 'till 2.

Dude, I gotta quit hollerin at these SIGs; They're all crazy.
by kodaman August 05, 2009
 
12.
SIG
1) Abbreviation for "signature"
2) Suck It Good (Almost like SMD)
SMD and SIG!
OMG! He did NOT just say that.
by Someone...Someone. December 15, 2010
 
13.
Sig
Abbreviation for a fraternity man in Sigma Chi.
Hot girls: Sigs are awesome...
by Jimmy Thornton August 19, 2008
 
14.
Sig
Sig is short for signature and can be used for anything, especially when you dont know what else to say
Joe: Hey man whats up?
Man: Sig!
by Sig Saur October 10, 2010