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2.
Something so incredibly horrible. Can also be used to describe how you feel. Commonly a modification of the phrase "when the shit hits the fan", replacing the "fan" in fantastic with "shit" making up the combination "shittastic"
"That test was so shittastic, I'd be lucky to get a 20%!"

"Ugh, I'm so hungover I feel shittastic."

by bluesubaru22 March 07, 2008
55 22
 
1.
Doing the WORST #%^#$ing job ever.
Britney Spear's parenting skills will be shittastic
by LordPhrozen June 21, 2005
54 19
 
3.
Don't let the name fool you, 'shit-tastic' actually means that something is really bad or fucked up. It's like being sarcastic whilst still saying something is shit.
Hey do you like my new anal dildo?
*rolls eyes* It's shit-tastic!
by StiffieSteve September 15, 2005
26 2
 
4.
An adjective that describes a situation that is fantastically shitty. It is the shitty version of a fantastic situation.
your bro- "Dude i just saw your girlfriend blowing your boss."

you- "Well isnt that Shit-tastic!
by Thenikowith1k March 12, 2011
3 0
 
5.
Most commonly used when something fantastic occurs from a shitty situation.
"My dad just got divorced, but at least he got rid of that hag. Its SHITTASTIC!! :D"

young boy-"Fuck! I dropped my icecream cone!"

pedo-"Its all right kittles, have some of my skittles!"

young boy-"YAY! ...This is shittastic"
by HelloMissAsh February 18, 2010
13 10
 
6.
The fantastic feeling you have after taking a shit.
I just took a huge dump and i feel shittastic.
by Becks January 01, 2003
26 38
 
7.
its like saying fan tastic.. but your swearing at the same time
i got an A+ on my rerport card. thats shittastic
by Thors Stone April 18, 2008
4 24