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A man or woman displaying sneaky abilities in life. Usuaully associated with Call of Duty, Modern Warfare 1 and 2. If you are a King rat then you obviously run the show.

King Rat goes well with Queen Rat.
1.Paul says " F*** yes! just called in my AC130!!!"
Glen then replies, "You're a KING RAT!"

2.You're doming so hard! We should get hayleigh over! Shes a queen rat!
by Russian mailorder bride April 13, 2010
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