A form of an orgy in which a guy and girl have bareback sex on a boat, after which another man then has sex with the same girl causing the other man's semen to curdle.
Jim: Hey Tod whudda you say me, you and your girlfriend do a curdled seadog friday night.
Tod: Why are you always trying to have sex with my girlfriend man?
A mentrual flow that has passed its expiration date and has become rife with mold, bile and excretory chunks.
I tried to eat out Michelle, but her lack of hygiene, combined with the time of the month, resulted in my getting a mouthful of curdled menstrual chunks.