1 definition by Timellini

Top Definition
OPM
oma pullo mukaan, i.e. bring your own booze.

A Finnish expression that is used in an invitation. If service is limited to beer, cider and non-alcoholic beverages, the invitation may encourage people to bring their own alcoholic drinks with them.
Welcome to my house warming party on Saturday. OPM!
by Timellini May 26, 2008

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