Often misspelled as SNOWBOARDER, a person who straps themself to one board (while everyone knows two are better) and procedes to slide down a snow covered slope on it. Slowboarders abide by
Murphy's law as seen when you, who know
what you are doing, are going down a mountain, and they materialize in front of you, causing a crash of you, him/her/it, or both.
Also like to sit down
in the middle of a good run, obstructing and ruining it.
Commonly confused with picnickers, idiots, morons, wanksters, retards, or fags