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3.
1. Often used to describe a state or quality when one is as glamorous as fish scales. Only associated with very expensive things.
2. Used to explain singing a song to the beat of glamorous.
1. Ex. - "Your eyes look so shantastic rigth now!!"

2. Ex. "Let's go and and shantacise our friend for performing such a noble task!"
by GuppySanchez May 22, 2010
 
1.
This is a term used to describe the level of amazingness of an event or incident. Usually sexual, this word is known to replace or provide a substitute for the term "Orgazmic".
This cake is Shantastic!/ This cake is amazing
So yeah...last night? that was shantastic/ Last night was orgazmic.
by Smitten Kitten September 06, 2005
 
2.
adj. a positive feeling beyond words.
spending time with you is shantastic.
by Dickie Moist October 07, 2003
 
4.
Doing something which you are not qualified to do. Such as develop websites.
"Hey, this site doesn't work. Whoever wrote it did a Shantastic job. Idiots"
by YourFriends April 17, 2007