Meaning of free-spool in English:

free-spool

Pronunciation /ˌfriːˈspuːl/

verb

Fishing
  • To put (a fishing reel) on a setting that allows the spool to spin freely; to use or cast (bait) on a line with the reel on this setting.

Origin

1950s. From free spool. Compare earlier free spooling, free-spooling.