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1.
Slang word for ASAP, often used in good humor.
You'd better haul your ass out here riki-tik.
by blubby March 21, 2006
 
2.
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
 
3.
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
 
4.
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