Definition of free spool in English:

free spool

noun

  • A spool on a fishing reel which may be disengaged from the rest of the reel mechanism, enabling it to spin freely; the setting on the reel which allows the spool to do this; the action of spinning freely in this way.

Origin

Early 20th century; earliest use found in Town & Country. From free + spool.

Pronunciation

free spool

/ˌfriː ˈspuːl/