Means to beat your meat or jerk off. They call it killing cats because when you jerk off you kill a cat according to certain myths.
by capt.huggyface July 18, 2008
by DJ Imperial Grand Masters Eric and Marcus April 08, 2008
by Daryl O'Reilly March 31, 2007
by kittehbiscuits May 02, 2011
The act or state of giving a woman multiple orgasms and/or fucking her until her vagina is throbbing red
by b.l0ve September 21, 2003
by Dustin November 21, 2004
Someone with headphones on, thinking they are singing their ass off, when infact they sound like a cat being killed slowly. Killing the Cat.
by RomelloX December 20, 2013