The act of putting one's penis into a loose woman on her period.
Even though Levi's girlfriend was on her period, he decided to go Red River Rafting and plunged into that pussy.
by KING KOONCE February 08, 2013
1 more definition
having sex with a girl on the rag
ex- i went red river rafting with Marina last night, it was nasty!
by W i g g l e s March 23, 2007