1. When you notice that a lady has very nice breast they can be referred to as chrontits.
2. When an event, item, idea, or action is incredibly awesome one may say that it is chrontits.
Hey Bro, see that hot piece over there? Ol' girl got those chrontits!
Dude 1: Yo check out this new watch my girl bought me!
Dude 2: Man that shit is the chrontits hommie!