Well frankly when that ocean so muphucking good
Make her swab the muphucking wood
Make her walk the muphucking plank

from Frank Ocean (Ft. André 3000) – Pink Matter Lyrics on Rap Genius

He starts it off with a clever reference to his collaborator’s (Frank Ocean!!) name, then continues the ocean metaphor. Swabbing the deck and walking the plank are both activities that take place on a ship sailing through the ocean, but the second meaning behind them is they are slang terms for sex. (Swab the wood= blow job, walk the plank= riding him).

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