Boy-chest refers to a grown man with a boy-like, un-muscular chest. Was featured in a quote by the character Ari Gold in the show Entourage.
Ari Gold of Entourage: And E, don't take your shirt off, I don't want anyone to go blind from the reflection of your translusive boy-chest
by crazyTT February 13, 2010
Get the Boy-chestmug.