this is generally used to describe a man with a very broad and deep chest. Usually the person has a naturally large ribcage, very round, and will have lots of upper body strength.
Those guys that pull trains and whatnot, they're generally very barrel chested.
slip of the tongue perhaps,
Those idiots who drive around in a ridiculously raised pick up truck, making a top heavy vehicle even more top heavy and unstable
A:*gah*
B: "Whats the matter"
A: This dam prickup is blinding me.
B: Stupid thing's, as if there lights weren't blinding enough as it is.