in the youth trend for “souped-up” motor-scootering, used for registering approval of the achievements of a daring, risk-taking rider UK
At the next set of lights, the daredevil tricks which had horrified the commuters are rewarded with shouts of “Beef!” and “Sick, man!” from his mates. — TheIndependentMagazine, p. 17, 28 August 2004