Unfuckwithable. The Queen. There be-eth only one, highly intimidating, sentient being in history to have ever achieved legibility to be associated with the said term.

It's root term, "fabulous" is self explanatory where as the following term "BAB", is an acronym for " Boss Ass Bitch."

Only one person, who is at the epitome of royalty, will ever have the right to be called fababulous.
Guy #1 : "Whoa bruh, did you see dat ass?!"

Guy #2 : "Aye mayne, das Bia, she dat fababulous mermaid Queen chic. Don't fuck wit her bruh."

Guy #1 : *stares for too long* ; *can't handle the fababulousity* ; *dick explodes* ; *dies*
by 3sood July 13, 2014
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Something that is beyond the fabulas stage and has passed through several dimentsions to get to earth, then it was anointed by the pope who was then turned into what can only be described as holy and amazing. Fababulous can also be frased as fababs or fabeebeeleecious( fabee bee leee shious). Things that are fababulous consist of cats l, sprite cranberry
Wow man, this jalapeno cereal is fababulous
by Mr.Mclemon December 23, 2018
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