Top definition
Abbreviation for, "S(he) Ain't Fuckin Playin. Used in a humorous way when person referred to is very serious about something.
Person 1:"Mike The Hype Over There Sellin Flashlights For A Dolla"
Person 2: "HAFP he gettin his damn money lmao"
Person 2: "HAFP he gettin his damn money lmao"
by Realeyes924 August 17, 2017