look up any word, like fluffer:
 
1.
Occurs when a person takes a very large shit, where it seemingly is spread all over the toilet like coral reef is spread over the ocean floor
Man, John sure did coral reef it after eating too much Arby's.
by Karl Monday January 20, 2010
 
2.
Coral Reef is rhyming slang for Queef which means to Fanny Fart
Marlene have you just done a "coral reef ? There was a down turn in the wind and i can smell it from here.
by Grimey1988 December 01, 2009
 
3.
Someone who is cool, popular, awesome, or trendy; often a trend setter. Based off the Spongebob Squarepants (A popular Kids TV show) reference, coral.
Pearl Krabs (modified):See, no one says "cool" anymore. That's such an old person thing. Now we say "coral reef", as in "She is such a Koral Reef".

Teenager 1: Did you see the new girl yesterday? She was hanging out with the popular kids!
Teenager 2: Yeah! She's such a Koral Reef!
by EnViTaco April 21, 2013