Top definition
The gelatinous post-coital discharge of the vagina after unprotected sex that gathers in the undergarments of the recipient female.
I need a bathroom, I just had sex with Randy and I have a huge cum oyster in my panties.
by mmmoyesters19 April 11, 2013
Mug icon

The Urban Dictionary T-Shirt

Soft and offensive. Just like you.

Buy the shirt