Can't remember the brand, but it was a ginger beer.
Never again.
It wouldn't have been this, would it?
I wouldn't say that it was the worst but it was one of the 5 undrinkable beers i've ever drank. It was overwhelmingly sweet and I had to water it down with another lager I had to finish it.
The absolute worst in my experience was something from Kelso Brewery on tap in a bar in Brooklyn. It tasted like throw up.