when your head simply explodes from the sheer fact that something so awesome in magnitude that it takes the word Frantastic to the next level. Generally used to described anyone who's name started with Fran, no matter the ending. Fortunately it can now be used to describe any Life-changing event.
Person 1: How can you describe the best thing in the world bro? I'm just at a loss…
Person 2: Man, you just had the humbling gift of experiencing a Frantastibular moment!
An immense conflation of positive adjectives combining their powers of description into an insurmountable superlative capable of expressing the utmost level of _________ (insert desired expression).