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.
by Mr. dibbles March 06, 2008
When the chest is in a barrel-like shape. Normally occurs when a woman is pregnant.
Emily is very barrel chested. She resembles an ape.
by Icey The Wifey August 19, 2006