An obscenely obnoxious young child who can't seem to behave in any place, at any time. Typically has clueless progenitors who are too busy getting drunk and socializing to watch their children. The bane of waitstaff and service personnel everywhere.
"That little crotch fruit almost made me drop my tray!"
"Ma'am, please keep your crotch fruit away from the knives in the kitchen section."