An extremely rude and derogatory term meaning a diver who is unsafe to dive with because of an over-inflated ego - one who "strokes" their ego. However, the term is frequently applied tongue-in-cheek to a diver using any non-DIR equipment configuration.Fish_Whisperer:What is a "stroke"? (A n00b diver?)
Although, often used in good humor, there are those who wish the term was never used at all, and those who improperly use the term and mean it.