Grown Men on Bicycles - a derogatory name for men over 30 who ride BMX bicycles aimlessly as if they are casing a neighborhood. Typically used by neighborhood watch associations, but has since been embraced by many men on bicycles in protest of propose discriminatory bicycle ordinances.
Almost hit a GMOB at F and Henderson going the wrong way on the one-way street.
by bofree April 11, 2016
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