(archaic or loosely) Any animal (or any vertebrate) that lives exclusively in water.
(uncountable) The flesh of the fish used as food.
(uncountable) A cardgame in which the object is to obtain cards in pairs or sets of four (depending on the variation), by asking the other players for cards of a particular rank.
(poker) A bad poker player. Compare shark (a good poker player).
(countable, nautical) A makeshiftoverlapping longitudinal brace, originally shaped roughly like a fish, used to temporarily repair or extend a spar or mast of a ship.
“For once the suspicions about the fishiness of the outcome are correct, but not in any pejorative sense.”
“The tasty fishiness was perfectly preserved in a light marinade.”
“In fact it is uncannily like the real thing in appearance, but the taste lacks the level of saltiness and fishiness you would find in the genuine article.”