o card 

Giving a girl her first orgasm.

She said that never has happened to her before. Definitely scored an o card last night!

o card by robertoblanco June 28, 2011

Cardi O 

This is Cardi B's sister who is really into fitness.

(THIS IS A JOKE)

"Hey you know Cardi B right?"
"Yeah, Bodak Yellow."
"Yeah, but did you know she had a sister named Cardi O. She apparently is super into fitness."

Cardi O by Vanilla Water April 20, 2018

Ocard 

A secret way to say to someone you love them even if they don’t love you back

Girl: Ocard
Crush: what
Girl: wait who’s your crush
Crush: no one..?
Girl: ok...

Ocard by Grayola11 January 16, 2021