Definition of beefsteaks:
(n) :
(countable, uncountable) (A) steak cut from a cattle beast (e.g., cow, steer).
(n) :
(uncountable) The herb prepared from the leaves of the beefsteak plant.
(n) :
(countable, archaic): A celebratory dinner, commonly held in New York between about 1870 and 1940 involving the consumption of enormous quantities of broiled steak and beer.
(n) :
(countable) Ellipsis of beefsteak tomato. [(US, Canada) A type of large tomato.]
(n) :
(countable) Ellipsis of beefsteak mushroom. [Fistulina hepatica (an edible fungus)]
(n) :
(countable) Ellipsis of beefsteak plant, also known as perilla and shiso (Perilla frutescens var. crispa).