1 definition by Clem v4

Top Definition
Stands for Dirty Irish Bastard. Refers to lewd middle-aged drunken people hanging around in Dublin youth hostels.

Gradually applied to people from other nationalities as well:
DFB: Dirty French Bastard
DAB: Dirty Australian Bastard
That DIB spent the whole night drinking wine from a plastic bottle and burping. In the dorm.
by Clem v4 June 25, 2006

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