F-Bomb:

F-Bomb refers to the strongest weapon in one's verbal arsenal. In a time when words like 'bitch' and 'ass' have lost their shock value in pop culture, the word 'f**k' is still like dropping a bomb in polite conversation. 

If you're going to drop the F-bomb in the wrong places at the wrong times, then why not give everyone the heads up with this great F-Bomb t-shirt? Mature T-shirt.