The sound one makes while pretending to hit someone. Usually it is accompanied by a karate style hitting motion. If this vocalization and action is performed by oneself and you are unknowingly observed by a friend or coworker, you will be laughed at and subsequently humiliated. The evolution of HI-YAH!
Tricia surprised me in the gift shop when I was WHA-PSHHH ing. I went WHA-PSHHHH and she still hasn’t stopped laughing
by Fliesonpaper September 8, 2020