oaty biscuit
An Oaty Biscuit is when you wear a condom, drop a biscuit on it, and then go down on your partner like it's a fancy dessert.
I dropped a biscuit on the condom and said it was a fancy dessert.
He threw a biscuit on the condom and called it a love dessert.
She dropped a biscuit on the condom and called it a snack-time dessert.