Definition 2: The cry of a heartbroken girl or boy when their significant other breaks up with them.
She would love to talk to you, but she went out of the gym and is currently in the middle of a high school hall squall.
the sound made when one's wet shoes slide along the floor of a high school hall as in the case of being pulled by someone else or when running and coming to a screeching halt.
That was a long and loud high school hall squall.