Chiefly British. to entertain by dancing, singing, or reciting on the street or in a public place.
2.
Canadian. to make a showy or noisy appeal.
Origin: 1850–55; perh., if earlier sense was “to make a living by entertaining,” < Polari < It buscare to procure, get, gain < Sp buscar to look for, seek (of disputed orig.)
busk (bŭsk) intr.v.
busked, busk·ing, busks To play music or perform entertainment in a public place, usually while soliciting money.
[Earlier, to be an itinerant performer, probably from busk, to go about seeking, cruise as a pirate, perhaps from obsolete French busquer, to prowl, from Italian buscare, to prowl, or Spanish buscar, to seek, from Old Spanish boscar.] busk'er n.