I used to always say that to my mum for instance, "nowadays, people do it this way" "Nowadays people don't do that". My parents thought it was really funny!!
There's a French word that I love to use: balivernes! (it means "rubbish!", it's a word that they use rarely, if at all and when I say it the reaction is either the mouth drops open or they burst out laughing.
In English I don't know if I can write them in full "Crik*y" and "Stone me!".
Whoops and sorry - I forgot to say why. They are all words that slip out comfortably and don't offend anyone apart from make people smile from time to time.