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.
"First, take a firm grasp of the top with your index and middle fingerand then twist in an anti-clockwise direction until it is possible to lift off with ease"