The world's biggest hamburger, to date (October 2010) weighed 84 kg, which is the equivalent of 184 pounds. It is officially recognised by the Guiness Book of World Records as the world's largest, legitimate hamburger. It was made complete with meat, bread rolls, cheese, sauce and salad. The hamburger was created by a place called Ambrosia on the Spot, in Sydney's eastern suburbs (Australia).
The noun hamburger is a common noun, a word for any hamburger of any kind. A proper noun is the name of a specific person, place, thing, or a title; for example: Hamburger Mary's International in Chicago The Battle of Hamburger Hill (Hill 937), Vietnam 1969 Hamburger Helper Hamburger Strasse, Dresden Germany