Yo there Gary T.
I was hoping that one of our English Midlands contingent would have jumped in to clarify the 'bits' bit.
I used to share a house on the west of Ireland with a lad from close to Coventry; that place where all the BBC's World Service transmitters are (The name escapes me at the minute).
I was making chicken soup one evening, after we had killed one of the cocks, and had added chopped onion, pieces of chicken, carrots, etc.
As I served up my culinary masterpiece, yer man says to me, "Oh, it's got bits in.....I like bits."
He was referring to the pieces of chicken, onion, etc, and was using 'bits' as the collective noun.
'Bits', as far as I know, can be used to describe the contents of any liquid that has pieces of something floating, or submerged in it - recognisable or not.
I hope this helps.