something that is so good, you can't really talk about it without ruining it for you or someone else.
Guy 1: Ahh, man, i went to see that new movie, and it was so...
Guy 2: So what?
Guy 1: Grebbly.
by Amanda July 21, 2004
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A whole load of jargan or words that are abstract or seem to be compleatly off topic or randomunrellated to the topic at hand.
In forum context.
Topic: Computer games
Someones individual thread: Lunch last night.
Forum members reply: That's just grebble. Back on topic!
by Pyro Teamkill March 11, 2005
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