Main Entry: ²buck

Function: verb

Date: 1750

transitive verb

1 a archaic : ¹butt b : oppose, resist <bucking the system>
2 : to throw (as a rider) by bucking
3 : to charge into (as a headwind)
4 a : to pass especially from one person to another b : to move or load (as heavy objects) especially with mechanical equipmentintransitive verb 1 of a horse or mule : to spring into the air with the back arched
2 : to charge against something (as an obstruction)
3 a : to move or react jerkily b : to refuse assent : balk
4 : to strive for advancement sometimes without regard to ethical behavior <bucking for a promotion>

— buck·er noun