Pony Keg 

A half-size beer container that holds about 7.75 gallons (a quarter barrel, or 62 pints of beer.

There's only going to be six of us, so let's just get a pony keg.

Pony Keg by Lägermeister August 10, 2007

Pony Keg 

A small store that may sell beer, wine, chips, penny candy, and other usually small items. Similar to the stores that you might find at a gas station, a convenience store, or maybe a 7 Eleven, but usually tucked away within a neighborhood and not as well stocked.

I'm going to walk down to the Pony Keg and get some Doritos.

Pony Keg by ButchGibson.com January 24, 2006

Pony Keg 

A woman with a pertruding abdomin. The pony keg is the female equivalent of the male beer belly.

"She's not pregnant. its just a pony keg".

Pony Keg by irishtoddler July 15, 2009

ponykeg 

A convenience store that sells liquor and kegs (southwest Ohio)

Run down to the ponykeg and get me a sixer of Hudepohl.

ponykeg by Mike Spaeth December 4, 2005