A heroburger refers to a person who goes above and beyond to impress his boys. This could include funneling 5 beers at a party or even as simple as holding the elevator for a fellow bro.
Patty: Hey did you see our boy Sean shotgun 10 beers tonight?
Brock: Oh ya, that;s a heroburger if i've ever seen one.
A heroburger is someone that champs out. Loves themself. Puts on airs and graces. Not for the boys, but for the witnesses around them; preferrably the ladies. Quite happy to throw the boys under the bus if theres High Status Opinion to be made from doing so.
Heroburgers (object) are "consumed" by heroes.
A Heroburger (person) is someone thats clearly "consumes" way too many or "copiuos" amounts of
"check out oldmate at the bar" - got the paisely shirt on, 2 buttons down to promote the chest hair, goldchain, elbow planted with hand upright holding a large denomination bill/note $50 (pineapple) or $100 (a nanna - he says its from inheritance but its really from selling his older bro's seedy pot) folded crisply in half and sticking upright in a display of flagrant capitalism implying
(i) money talks im ready to be served
(ii) peacocking the cash to all the thirsty single females
"cleary....CLEARLY...he has been eating waaay too many Heroburgers....what a consumer"
derivation
"what a Heroburger" - you are what you eat. In most social settings youll easily spot the person who "consumes" the most heroburgers.
"clearly a consumer" - transparency/flagrancy
"copiuos amounts of" - the quantity of consumption