Definitions by Spliff Dog

bucking bronco 

When a man is doing a girl doggystyle and sticks both his thumbs up the girls ass and hooks both inside so he has a firm grip. While the girl reacts to this, she starts to kick out like a horse and thats where the fun begins...

Last night I gave the girl the time of her life. She even got the bucking bronco!

bucking bronco by Spliff Dog February 23, 2008