I would guess an “XL bully” is Brit speak for large pitbull?
Yup. Pit bulls that are bread to be very large pit bulls.
There are two varieties of American bulldog. The Johnson and Scott. The Johnson is bigger, stockier. They are not terriers. Ironically the ‘American’ bulldog was closer to what the English bulldog once was, before bull baiting was banned then they started breeding them with pugs to produce a smaller more docile dog.
I had an English bulldog, a boxer mix, a labrador and a Scott variety American. They were all good dogs. The Scott died from a brain tumor, broke my heart. Replaced him with a Johnson. He was vicious, had to have him put down.
Some pit bull terriers are bad enough at 40-50 lbs., but when you have one twice as big, uh uh. Avoid them.
It’s a specific breed over there and I think they’ve made it illegal.