adj. - Acronym for "own fucking program".
1) Military slang for when a person is doing their own thing, "singing to their own tune", and generally just acting different or seeming to be in their own world.
2) Also military slang for when an object is not working properly.
1) "Why on Earth did Brown did a tattoo of Daffy Duck? He's OFP, dawg."
2) "My laptop is OFP. It keeps giving me error messages when I try to shut it down."
Reference to the national mall in Washington, D.C. in Yung Joc's song "It's Going Down".
meet me in the mall
it's goin down - Yung Joc