The Collins Dictionarydefines the phrase as a slang expression, meaning “to earn certain rights, privileges, etc. as by having suffered in struggle.” Moreover, theCambridge Dictionarydefines it as “to do something that you do not enjoy in order to have something that you want, or because...
If it has a meaning, the meaning is something like ``is or was employed.'' So instead of being just a plain vanilla SWM, you can stand out from the crowd as a SWPM. It does make you wonder what an amateur male might be. P Professor, in cadet jargon. P, p Probability [...