IPA: /ˈlɔːɡˌroʊlər/
KK: /ˈlɔɡˌroʊlər/
A person who participates in the sport of logrolling, which involves balancing on a floating log while trying to knock an opponent off.
The logroller skillfully balanced on the log, trying to outmaneuver his opponent.
Logroller → The word is formed from "log" (from Old English *logg*, meaning a piece of wood) and "roller" (from the verb "roll", meaning to move by turning over and over). A logroller is someone who rolls logs, often in a competitive context, typically on water.
Think of someone moving a 'piece of wood' ('log') by 'rolling' it — that's what a logroller does.