Riding someone's piece , HARD. This could be in different degrees (levels) of intensity. Mounting, riding, trotting, galloping, CANTERING (most extreme).
"DAYUM, dat boi be cantering muh piece soo badly!! Tell him to jump da fuck off!"
1) A female who talks excessively.
2) When your girlfriend keeps talking during the big game
Example:
Roger: Hey, have you seen Rachel around?
Josh: No. Why?
Ralph: I saw her last night, and man she is just a chattering vagina. She wouldn't shut up.
Example:
Girlfriend: Blah blah blah blah, and blah blah blah blah.
Boyfriend: Stop being a chattering vagina, we are trying to watch the game!
Synonym: Chatty Cathy
Antonym: Talking Tom
She is such a chattering vagina, she just wont shut up. macronacular chatty cathy talking tom