bobber noun5 •A buoyant device (frequently made of cork or hollow plastic) attached to a line so as to suspend the end of the line with the hook (and bait or lure) above the bottom. •A style of custom motorcycle with stripped-down bodywork and a shortened (or "bobbed") rear fender. •A person who rides a bobsleigh; a bobsleigher. •One who takes part in apple bobbing. •One who has a bob hairstyle.Not to be outdone, another group of students formed the Bobber's Union and wore a much different hairstyle. — 2004 formsbobbers