Green’s Dictionary of Slang

(UK black) and so on, used as a non-specific punctuation at the end of a sentence.

1967		M. Anthony Green Days by River 108: But I mean he could bring his little girl-friend home and thing.
1999		(con. 1979–80) A. Wheatle Brixton Rock (2004) 22: Carol and I were enjoying ourselves at the club, dancing and t’ing.
2001		(con. 1981) A. Wheatle East of Acre Lane 5: Free of charge wid nuff compliments an’ t’ing.