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Derived from a story in "The Jungle Book" by Rudyard Kipling. The story featured a mongoose named Rikki Tikki who exhibited great speed. To do something "riki-tik" or "most riki-tik" is to do it very quickly. The phrase has common usage in the US armed forces.
"I need that taken care of most riki-tik, okay?"
by SpenserPS May 27, 2009
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Quickly. From an oriental phrase. Use mostly in the form Mo Riki Tik. Mostly used by U.S. Marines.

The phrase "most riki-tik" was used in the Movie Jarhead, and more recently in an episode of the Unit. Although the usage is primarily a Marine Corps slang term.
Better get up that hill most riki-tik before Gunney comes.
by GungHo December 13, 2007
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USMC jargon for "hurry-up"
Actually appeared in the movie "Full Metal Jacket" (1987) when Lt. Lockhart (USMC) tells Joker "You still here? Vanish, Joker, most riki-tik, and take Rafterman with you. You're responsible for him."
by stormbringer April 20, 2008
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