When trying to describe
something so fantastic that the word
alone just doesn't cut it.
Something so fantastic that it's fantasticness can only be equalled by the awesome power of the female mammary glands also colloquially know as tits. A combination if "tits" and the suffix "tastic". Titstastic.
Duke: Bro, you have to try some of my
weed-flavoured cookies I
baked this morning, they are fantastic! Nothing can
beat them!
Brent: Oh yeah? Wait till you try my pussy-flavoured homemade icecream with a hint of lemony mint!
Duke: Wow! Now that's beyond fantastic! That is indeed titstastic, bro!