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1.
2 4 5.... 2 for 5.... two for five (same)..

A term used a lot in the streets in the early 90's by those that hustled d r u g s for loot. It's exactly what it sounds like.. Your getting 2 pieces (mainly crack viles) for Five dollars.

It became common later as a joke.
"Yo sun, I got's 2 for 5 for these jumbs..." (jumbs was another word used for crack)
by 3 5 n 1 r p December 01, 2005