Hey you! Yes, you! Thank you for adding beauty to the world!
Definitions of boomkin:
noun: Alternative form of bumkin [(nautical) A short outrigger projecting from the side of the aft part of a square-rigged sailing ship, used as an attachment point for a rope (brace) used to set a yard-arm at different angles to a mast so to allow the ship to sail at different angles to the wind.]