"One of the guys that used to run it - for some reason I've no idea why he used to call me the Sea Monster and I was just looking around for a name and thought that'll do. That lasted for a couple of years probably"

This quote by Jo Brand is likely describing a label she was offered by someone she understood. It appears that the individual who gave her the label was somebody who utilized to run something, though the precise context is unclear. Jo Brand was trying to find a name to utilize for herself and chose to use the nickname she was provided, which she found amusing. The label, "Sea Monster," most likely lasted for a couple of years, as Jo Brand mentions. It is unclear why the individual who provided her the label chose to call her that, but it appears that Jo Brand discovered it amusing sufficient to use it for an amount of time.