What does Big ol' Bucket of Arse mean?

Big ol' Bucket of Arse meaning in Urban Dictionary

you kno when you're like walking across the street while see sekai machache you might be like mahn exactly what a big ol' bucket of arse she's..... Or when she's like thinking she's kl telling you tend to be a fuckface when you declare love thts bucket of arse territory right there. cos actually she really loves gavin FITZPATRICK more than anythin on earth.