poriomania (pÅrâ³ Ä-Å-mÄnâ² Ä-Ä) [Gr. poreia, walking, + mania, madness]
1 Refers to the bowler's motion that ends with the start of the delivery. 2  arm-swing: The arc of the bowling arm and hand from the swing to the backswing. 3  arrows: Targeting arrows that appear on the lane 12 to 16 feet beyond the foul line. 4  Also called darts.
Off Spin. Off spinners (or left armers bowling to left handed bats) have two classic ways of taking wickets. Firstly through bowling the right hander through the 'gate' of bat and pad, and secondly caught on the leg side (ideally short leg).The ball will tend to be with the spin onto the leg side or driven quite straight.ff spinners (or left armers bowling to left handed bats) have two classic ways of taking wickets. Firstly through bowling the right hander through the 'gate' of bat and pad, and secondly caught on the leg side (ideally short leg). The ball will tend to be with the spin onto the leg side or driven quite straight.