Green’s Dictionary of Slang

bricks and mortar n.²

a daughter.

1960		J. Franklyn Dict. of Rhy. Sl.
1979		R. Barker Fletcher’s Book of Rhy. Sl. 25: He lived with his bricks and mortar, Mary.
2003		Guardian Weekend 22 Feb. 7: I’m expected for lunch by my ‘bricks and mortar’ (daughter).
2021		Betoota-isms 243: ‘Heading to the courts to watch the Bricks and Mortar play a bit of tennis’.