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1.
A salty slug is a sexual act which involves the use of cocaine. It is performed by making a "line" on a penis and then a woman proceeds with giving the male a blowjob while trying to snort as much cocaine as possible.
Guy 1: You do anything freaky lately?

Guy 2: Yeah, I had this bag of coke and let this chick give me a salty slug!
by Phillip Kaltenbach June 14, 2006
 
2.
People who use saltyslug.com online community.
I went to SaltySlug.com and found a bunch of Salty Slugs int he community.
by chomper0 April 21, 2011