Everyone knows that one person that doesn't hold back. They don't drop F bombs, they drop truth bombs, and they never let you forget it.
A baptism, a funeral, a doctor's office, a playground: nothing's gonna stop their fucking game.
Personally, I am a big proponent of the work "fuck," mainly because I don't know any other way to simultaneously convey my anger and enthusiasm (ie: "This fucking blows!" and "This is fucking awesome!").
Pick up this F Bomb paperweight ($50, Uncommon Goods) for the trashy, foul-mouthed jerk in your life.
They'll fucking love it.