A situation similiar to blueballs in which a man is on the very tip of
ejaculating when his ho totally ditches him or does something to stop him from shooting his wad, jamming his cock with semen in the process. Also can make urinating quite
difficult afterwards.
AKA the very worse weapon the cocktease has in it's arsenal.
The ultimate bait and switch.
Dave: "Man, I was totally getting a handjob from Jenny but that bitch totally cockjammed me by saying she had work
in the morning and telling me to rub one out on my own."
Phil: "That sucks bro. What a fucking Cockjammer. Well at least you almost busted a nut."
Dave: "Bust a nut?!?! She almost busted MY
FUCKING DICK!! It hurts when I touch it. I think my penis knew she abandoned it before the deed was done. It's extremely angry about the whole ordeal. Oh, and
the best thing was I couldn't piss for 4 hours either."