noun
fungo bat
A lightweight, thin-handled bat used by coaches to hit practice grounders and fly balls during fielding drills. Wasei-eigo from English 'knock bat'.
wasei-eigo (Japanese-coined English), from knock bat
コーチがノックバットで内野ゴロを打つ。
The coach hits an infield grounder with the fungo bat.
ノックバットは普
A fungo bat is thinner and lighter than a regular bat.