adj; a word used to describe a person, place or thing that sucks to such an extent that it warrants the addition of tacular. A word made from a combination of sucks and spectacular. Something or someone that is spectacularily sucking.
Mona: "Patty look at the dress my mother just bought me."
Patty: "omg, flowers and balloons? and what's with the plaid and polka dot mix?"
Mona: "I don't know, you know my mom, she loves a little vodka with her cornflakes every morning."
Patty: "Well no offense to your wino mom Mona, but that dress is sucktacular."
Mona: "Don't talk about my mom that way you dirty whore"
If something has gone beyond "that sucks dude", "that totally sucks dude", and has eclipsed in suckiness any other sentence formation possibilities.
You can empathize, or exclaim, "that/this (insert pronoun here) is completely sucktacular"
"Your dog left you, your girlfriend took your job by sleeping with your boss, and your car was stolen ? I'm so sorry Dude, that's sucktacular."
Or..
"My girlfriend stole my job...by sleeping with my boss!! This is seriously Sucktacular!"
Adj: Word used to convey a feeling of complete awe; wonder; amazement. Word was coined in the early 2000's by joining 'Fucking Spectacular' into a much easier and shorter word, 'fucktacular'.