a small ball made of strands of wool used as a decoration on a hat or on furnishings

a woollen ski hat with a bobble on top

move with a feeble or irregular bouncing motion

some of those goals have bobbled in off the post

mishandle (a ball)

Andy bobbled the ball, so his throw home was too late

a feeble or irregular bouncing motion

a mishandling of a ball

a once-a-season bobble en route to a breakaway jam