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The oblivious, slow driver that no one can pass leading a long line of aggrevated drivers behind him, like he is the Grand Marshall in a parade.
Geezzis... I wish this Grand Marshall would pull the freak over so I can get to work!!!
by puttycake December 01, 2009
The grand marshall is the person of honor in a parade.
Some woman was a grand marshall because she was ninety years old, making her some small town's oldest resident. If she can get a parade honoring her for that, I'll have no trouble becoming a grand marshall.
by Diggity Monkeez January 04, 2005