1 definition by alkalinefemale

an affirmation that something is cool, amazing, hardcore or unbelievable...kinda like asking "are you shittin me?" or saying "wow, holy shit dude"or "hell yeah" depending on if it is used as a question or a statement
1. bob:hey the red sox won the world series
billy: fuck around??
Bob: i shit you not dude

2. bob:yo dat party was off da hook yo
Billy: fuck around!! fo' real yo
by alkalinefemale April 16, 2006
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