1 definition by Truethooo
When a girl squirts like a oyster so hard on a mans penis, she spins round in a circle multiple times, like a helicopter.
Girl: Embarrassing moment last night.
Friend: What happend?
Girl: I oystercoptered and broke his dick...
Friend: What happend?
Girl: I oystercoptered and broke his dick...
by Truethooo August 8, 2017