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 August 12, 2008
 Get the killing catsmug.
Get the killing catsmug. by DJ Imperial Grand Masters Eric and Marcus April 8, 2008
 Get the Killing Catsmug.
Get the Killing Catsmug. by Daryl O'Reilly April 5, 2007
 Get the Killing Catsmug.
Get the Killing Catsmug. by kittehbiscuits May 25, 2011
 Get the kill the catmug.
Get the kill the catmug. 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
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Get the Kill the catmug. by Dustin November 21, 2004
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Get the kill a catmug. 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 21, 2013
 Get the killing the catmug.
Get the killing the catmug.