Top Definition
1. super extravagantly fanciful; marvelous.

2. extremely amazing
3. incredibly better than sex
4. a made up word to describe feelings of shire exhilerating emotion
OMG that bump was fanfuckmeinthearsetastic

or

WOW this tune is fanfuckmeinthearsetastic

or

You truly are fanfuckmeinthearsetastic
by Belinda B September 13, 2011

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