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15.
super spectacular
That cake was awesometastic! It was delicious and moist.
by akbeauty June 02, 2010
 
16.
A slang word used to describe something or someone that is beyond "awesome" and absolutely fantastic.
That gelato is awesometastic! I had an awesometastic day! That dress is just awesometastic!
by WeddingPlanner1 September 21, 2009
 
17.
a cross between awesome and fantastic; it is twice as good as either of them
cameron and i had an awesometastic time having sex last night
by random ramdomness April 16, 2009
 
18.
Its a word you can use when you see something sooooo cool but cant find the right word to descirbe it so thats when you put awesome and fantastic together to form the word awesometastic
person) OMG did you see that he just did flippen 5 back flips in the air !!!

person2) I know it was awesometastic
by Morgana95 March 28, 2009
 
19.
A combination of the words 'Awesome' and 'Fantastic' in order to describe something that its beyond either of the words on their own. An '-al' can be added to the end for an added effect.
Fred: Did you see Chuck Norris roundhouse 9 guys at once last night?

Tom: Yeah dude. It was awesometastic.
by Sneaky Pancakes June 04, 2009
 
20.
Awesome and fantastic mixed together to create the most amazing word in the WORLD!
Today was the most awesometastic day in choir ever(:
by MaddieDarling November 25, 2010
 
21.
Awesome + Fantastic

Used in places where either of the above words will not suffice
techie2200 is the most awesometastic guy on the planet
by techie2200 March 02, 2005