having a period; menstruating.
better put a plastic sheet on the sofa before thunderthighs sits down, she's riding the cotton pony.
by Dunky Oggins November 23, 2003

by Le_ska July 2, 2008

by Kung-Fu Jesus May 15, 2004

by Synthetikax May 19, 2007

'ride or die chick' refers to someone who (normally a girl, hence the word chick) is down for everything & anything. Basically down for both the bad and the good.
by Gabiita May 29, 2008

When there is no one sitting in the passenger seat, but there are people riding in the back seats.
Originates from the bay area, where asian people for some reason never fill that front seat...
Originates from the bay area, where asian people for some reason never fill that front seat...
by The Architect January 22, 2006

A sexual act where the male, while having anal sex on top of the girl, informs the girl that he has AIDS, and then sees how long he can stay inside of her without being bucked off.
Mark was giving it to Margret and decided to pull a California Bull ride. He broke his previous record, lasting a full 9 seconds.
by Mizzle Mizzle July 1, 2011
