The "V" of at the waist line
The iliac furrow, also known as Apollo's Belt or an Adonis belt, is a term for a part of the human anatomy. It refers to either one of two shallow grooves of the surface anatomy of the human abdomen running from the iliac crest (hip bone) to the pubis. In some colloquial circles, it is referred to as the devil's shoulders.
Damn he must work his abs look at his Apollo's Belt.