look up any word, like smh:
 
1.
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
 
2.
Some moronic way to say "awesome" and "cool" while kicking the English dictionary once again.

Typical user is an overexcited 12 year old AOLer.
THAT WAS AWESOMECOOL DUDE OMG OMG (add l33tspeak).
by Darxide November 23, 2004