maples
Another name for the bowling pins .

mark
a strike or a spare.

match play
A tournament in which bowlers are matched against each other individually.

miss
An error or a blow.

mixer
A ball with action that causes the pins to bounce around.

mother-in-law
Another name for the 7 pin.

move in
The adjustment made to nearer the center of the approach.

move out
The adjustment made to nearer the corner positions on the approach.

mule ears
7-10 splt.

murphy
A baby split: the 3-10 or the 2-7 split.