Another word for a Gay man's mustache. This means the gay man likes to toss his partners salad thus calling his mustache a biscuit duster. (Biscuit=Butt)
Jordan and Timmy are going to have extra fun tonight since Jordan grew out his "Biscuit Duster".
any properly grown moustache, full enough to be accepted as a motorcycle cop. This moustache will easily brush the dust off any average sized dick while sucking on it, with ease.
this moustache takes on the resemblance of a 8" wide paint brush, similar to that of ned flanders.
when that motorcycle cop pulled me over, i commented in regards to what a beautiful dick duster he had. He obliged me by sucking my cock and dusting it at the same time. my tax dollars paying me back for once.