Something that is extremely desirable not limited to only women but including objects or actions as well.

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

1: A pair of massive tits!

2: If someone is really good, and is shouted out in joy.

the highest level of awesomeness including but not limited too bad ass, sick, and amazing. Used between men and women who appreciate the value of all tits. This to the utmost compliment of any activity, saying, happening, action, movie, song, video game, or anything that could be rated on a scale of awesomeness.

Dude, we were flying down the mountain that run was supertits!

Have you played that new game? You haven't; well, you need to it is supertits!
Hey are you going to the party tonight I heard it will be supertits?