Top definition
1. a niffty/spiffy/fancy way of saying put up the sail.
2. or to have sex with
3. or cum on someone
4 and or have sex with someone while setting up a sail on a boat.
1. Nick:Would you help me fosberg today?
Sally: no way jose.
2/3. Nick: Fosberg with me tonight.
Ryan: Only if you promise to fosberg on me.
4. Nick:Would you like to fosberg and then fosberg me some more?
Lucy: Indeed.
by Herbed211 March 06, 2010
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