Hop belly

A person with a large bulbous stomach due to a lifetime of drinking beer

That hop belly geezer at the bar won't stop talking about the price of beer these days

bar presence

(1) The ability to attract the attention of a busy bar tender in a crowded bar.
(2) The ability to forcibly and persuasively make your point.

Mary has awesome bar presence. She can walk into a crowded bar on a Friday afternoon and get her drinks order in a couple of minutes. Fred, on the other hand will stand a t the bar all night and be invisible to the bar tender. He has no bar presence.