An American indian war cry meaning- "Give me more!"- made popular by Mark Lauren in the book You Are Your Own Gym and used by U.S. Special Operations troops and Navy SEALS during training.
Trainee passes out underwater, gets pulled out, resuscitated, and asked, "Are you okay, pussy?" Pussy replies, "HOOYA, Sergeant!!"
by Klingkong2 December 17, 2015