a crazy smelly glutton for punishment, street punk kid, fueled by sexxxiness, rage, alcohol and small penis envy.
by denverpunkass October 7, 2011

Girls (or guys, I guess) who can't get over themselves! They beg for attention and take pictures, often showing an excess cleavage or sticking out their ass. The plural to "slug" is "sluggys". Sluggys are often rather stuck-up and obsessed with themselves, and getting a girlfriend or boyfriend. When they do, in fact, have that boyfriend or girlfriend, they tend to say "I love you" too quickly and end up getting dumped/breaking up with them just as quickly. Sluggys are not liked. A synonym to slug is "slore".
Person1- "Oh my gosh did you SEE her tumblr?"
Person2- "I know, she's such a slug."
Person1- "You're like a coin!"
Slug- "Aw, valuable?!"
Person1- "Nah, two-faced."
(:
Person2- "I know, she's such a slug."
Person1- "You're like a coin!"
Slug- "Aw, valuable?!"
Person1- "Nah, two-faced."
(:
by YoureASlug February 9, 2012

by RE1000 August 30, 2008

by Rickey G December 14, 2003

Person 1: 'Wow, she's giving that car a proper slugging'
Person 2: 'Yeah, look at the slug trails on that!'
Person 2: 'Yeah, look at the slug trails on that!'
by Drivebyabuser April 19, 2013

Slow Learner Under Guidance
In the Army a SLUG is new soldiers that are still in training but not the fastest to pick up on things.
"Can you show that Slug how to do it AGAIN?"
"Can you show that Slug how to do it AGAIN?"
by Drill Sgt Clark November 11, 2009
