Similarly, my Mum describing the colour of her settee as N***** brown. Me, aged 15, saying "isn't that racist, Mum?" She *looks perplexed* - "I don't know...that's what they say".
My dad said this to me, I now say it to my 7 y/o son. He was at his nannans the other week wi r lass and she asked him where nannan was, guess what his reply was haha.