This is not referring to the fine delicacies of many Romanian Delis. It is a direct reference towards what is inside a Romanian boy's shorts. It is usually used as an insult because most Romanian Meat is little in quantity. Upon viewing a picture of Romanian Meat a microscope is always necessary. Often a boy with Romanian Meat is a Romaniac. Even though Romanian Meat is far from being fantabulous they don't hesitate to show you.
John: Hey babe wanna see my Romanian Meat?
Sally: Errr no?
John: Aww come on girl!
(John Flashes Romanian Meat at Sally)
*Long awkward and silent pause*
John: You likey?
Sally: Haha sorry I couldn't see anything...what was I looking for? A Tic-Tac?