1. A portmanteau of not two, but three words:
a)
Fucking - self-explanatory. Used as an intensifier.
b) Über - the
German word for "above" or "over," now commonly used in English to
mean "super," "better," or "very"
c) Tastic - shortened version of "fantastic," now used as a suffix to other activities or names (
e.g. foodtastic)
All three of these words combined form the superlative, nay, the mother of all words. Not to be used lightly.
2. In concordance with the use of tastic as a suffix and über as a prefix, a single word may be inserted between them (e.g. fubercraptastic).
1.
Charlie: How was the party?
Kevin: OMG...it was...it was...I can't even describe it...
Scott: Fübertastic?
2. Kevin: Yo, wassup?
Charlie: ughhhhhhhhh
Kevin: What's wrong?
Charlie: ughhhhhhhhh
Kevin: Did you seriously drink that entire keg?
Charlie: ughhhhhhhhh
Kevin: C'mon, man, give me something. How you feeling?
Charlie: Fubercraptastic....