A delivery that fails to bounce to the expected height after bouncing, thus beating the batsman and "goes under" the bat. Often results in batsmen being out bowled.

A gazunder is a delivery that stays unexpectedly low after pitching, sneaking under the bat to potentially bowl the batsman. It's named because it 'goes under' the bat's expected path. Unlike a yorker (which aims at the toes) or flipper (which skids), a gazunder fails to reach expected bounce height entirely, often catching the batsman unprepared.