When a woman is so ugly that the man tosses off on the bed, leaves the room and then the woman squirms around on the jizz thus completing the sex act, just like salmon do.
"Hey man, that chick is so ugly I wouldn't have salmon sex with her".
"I wouldn't have salmon sex with her with your dick".
"I wouldn't have salmon sex with her with your dick".
by Space Freak January 2, 2012
A term applied to a partner that gets a girl so wet that he must swim upstream between her thighs before pleasing her.
by Drtrantheman123 May 9, 2016