Enduring surf slang expression meaning excited, pleased, happy, thrilled. "Stoke" is an English adaptation of the 17th-century Dutch word stok, used to describe the rearrangement of logs in a fireplace in order to bring up the flames. California surfers began using the word in the early or mid-'50s, and it never went out of fashion. Variations include "stoker," "surf-stoked," "stoke-um," "stokaboka," and "stokearama."

Research suggests that the lingering effects of surf stoke—what you feel a...