Female ejaculation; the watery substance that comes out of a woman sometimes when she gets a good lay. not common for all (read straight) women.
Dude, she F-Jacked all over my face.

by BardHead January 19, 2009
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Class A dick head who has no friends and thinks hes hard because he works on a farm and doesn't go to school
Guy 1: Jack F is such a dick

Guy 2: I know right
by Got you Jack F March 17, 2020
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Has a perm
Jack F usually has a perm
by Marv101010 June 24, 2021
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