The term used to describe something exceptionally awesome. The term is derived from the basic phrase of describing something awesome as "the tits", yet we all know that everything is better on ice, so when something is exceptionally awesome it can be described as "tits on ice", hence the etymology of the phrase.

the whale tail is the shape formed when a g-string rides up high over a womans trousers

a phrase that acts as an adjective to describe a thing that possesses the greatest amount excellence appropriate to that thing.

Difficult, tough, hard, challenging