Someone who creates a really sick (cool) profile pic (photoshoped of course), post really sick comments, has thousands of friends that dont' know them but in person is a total loser.
I friended XXXXXX and couldn't wait to meet them in person. I stalked their profile constantly because it was facebook sick. Then, when we met, I realized I liked them better on their profile
by kentuckyWoman September 4, 2010
Get the facebook sickmug. by bezzr77 September 11, 2007
Get the sick fannymug. by KrustyKrabPizza April 25, 2009
Get the Dope Sickmug. by igorswagjacks February 20, 2011
Get the Your Sickmug. by party girl from 95 February 23, 2009
Get the sick nastymug. by Taylor Sprizzzzzzleee May 2, 2006
Get the sick nastymug. Sick-o originated at or was at least popularized in Oakville, Canada. It's variations include sick-ass. It has the same meaning as sick, only slightly better.
by DefinitionGuru3597043057293 September 2, 2005
Get the sick-omug.