To over emphasize the awesomeness of something. A contraction of the word awesome and cool, effectively combining the two words.
That was so awesomecool dude!
by The Patmeister May 28, 2003
"I was walking through Slurrey last night and one of those surrey girls came up to me. Damn, she was so dirty I couldnt even look at her!"
by The Patmeister July 02, 2003