The curves on a woman that define where the butt cheeks and legs meet.
The origins of the word come from Oxford, UK.
Also known as the gluteal sulcus in anatomy.
Usually when the melody of a song is slower people link it to sad/emotional songs but sometimes people can describe them as calming, fast pace songs that are upbeat can very on different types of music. How a song goes/sounds like isn't linked to a specific word to describe it therefore you could use tutututu.