Definition of thole pin in English:

thole pin

noun

  • A pin, typically one of a pair, fitted to the gunwale of a rowboat to act as the fulcrum for an oar.

    • ‘He relates the importance of the thole, which secures the oar to the boat, and notes that towing was the expedition's worst job assignment.’

Origin

Old English, of Germanic origin; related to Dutch dol.