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1.
Prison style sex between two African American males. Most often nonconsensual.
Chief Keef was quoted saying "Hell no I aint gay! I did a bid. It was just macaroni time.
by bestbefore84 June 11, 2013
 
2.
assault with a fire arm, macaroni time is actually in reference to dried macaroni shells. Shells is a slang term for bullets.
Some stickup kids got the stash. Think it's macaroni time.
by DoooougMurphy November 13, 2013