I was thinking of this song today and could not remember who sang it, but Google found you..and now I won't drive my partner nuts all evening by singing the bits I do remember.... a few differences, I think, to what your visitor remembers..

the EDGE of Bethnal Green
AS her dad was on the dole
DRAINPIPE pants
fell for ALL her girlish
THEN he went quite white
the middle of HER cha-cha-cha !!!

Good to find this entry, Thanks.