A group of drunk girls, either on the move or at a party/bar, whose high pitch squawkings feed off each other until they become a destructive force capable of annihilating ear drums, sanity, a good time, or any respect one may have had for them.
Whorenado chasers are guys who seek out whorenados in the hopes of taking one of the girls home after the whorenado has spent most of it's energy and has been downgraded to a "slutclone."
When those girls get together with a box of Franzia you can expect a whorenado on its way real soon.
Did you see that whorenado just blow into the bar? Those girls could barely stand.