A person who looks like a rat, but with the training of the Karate. So in essence Master Splinter is just a Ninja Rat Boy
by Maverick October 13, 2003
by Gumba Gumba February 25, 2004
A rat who lives in a sewer with X-box speakers, 5.1 surround sound WoW speakers, Rainbow Six, and a Blue Dickies Jacket. He is also a trainer of the TMNT (teenage mutant ninja turtles) and has a afro.
by Ratfro September 05, 2007