RSA – Rear Seat Accessory – A member of the opposite gender, usually decorative in nature, that occupies the passenger’s portion of a motorcycle seat.
I’m looking for a new R.S.A.
or
My biker friend lost his RSA the other day when it fell off; I'm helping him find a new one.
or
My biker friend lost his RSA the other day when it fell off; I'm helping him find a new one.
by tall_dave_1959 October 13, 2009
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