An Italian dining jacket is a term used for the overused nasty term "the wife beater". The Italian dining jacket is a thin white tank top, with a t-strap back and usually comes in a cotton small ribbed fabric.
This style usually worn by loud, fat, greasy Italian/ Portuguese/Spanish men who inhabit their front porches and wear mandles,this tank has recently been made popular by trendy hipster store American Apparel.
Also very stylish with wanna be gansters who listen to really bad hip hop from the Southern USA and steriod taking meatheads that inhabit the gym and try to pick up chicks.
Look at that fat sweaty man in the restaurant wearing the Italian dining jacket.