拳击的前手英语叫做 "jab"。
"Jab" 是一个俚语，源自于 18 世纪英国人所使用的一种武器——"jab stick"，也就是短棒。这种武器用来刺击、戳击、或按压对手，所以 "jab" 这个词在拳击中就用来描述类似的攻击方式，也就是用前拳快速猛烈地刺击对手。
例句：
The boxer threw a series of jabs at his opponent. (拳击手对着对手连续地打出一系列前拳。)
His jab was so fast and accurate that his opponent couldn't even react. (他的前拳速度非常快，而且准确度很高，以至于对手根本反应不过来。)
She used her jab to keep her opponent at a distance and set up her more powerful punches. (她用前拳保持着与对手的距离，并为自己更强力的拳头做准备。)