1 definition by Rose Michaels

1

Bring You Own Single Friend is a new trend in parties - bringing a single friend to a party that you're not interested in

Did you hear about the party? The invites say B.Y.O.S.F., so why don't you bring your hot roommate?

by Rose Michaels December 05, 2013

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• © 1999-2021 Urban Dictionary ® • advertise • terms of service • privacy • dmca • bug report • help • blog • data subject request