To take a real life object like a pen, comb, stick, spoon, or anything and throw it like a throwing knife in MW2. Before throwing or when releasing the object, a person will usually say "Throwing knife!" to let them know what they were trying to do.
My cat was laying on the floor, so I picked up my comb and said "Throwing knife!" and he got Throwing Knifed.
by LEETP June 30, 2010