The term POP FLY PATH is composed of three words: POP, FLY, and PATH. The first word, POP, is a verb meaning to make a short, sharp sound. The second word, FLY, is a noun referring to an insect of the order Diptera. The third word, PATH, is a noun meaning a way or track laid down for walking or made by continual treading. Together, these three words form a phrase that can be used to describe the trajectory of a POP FLY in baseball, which is a high, arching FLY ball hit into the air.