When I was a teenager, I once asked in a 24hr service station for 20 silkcut and a packet of skinarette papers . While also buying fizzy drink and copius amounts of chocolate/sweets/crisps . The cashier just grinned knowingly.
Can you believe I asked for a cheese and onion "punani". At work we joke about this, but as soon as I realised what I'd said I was so embarrassed ,but the girl serving never said a word and neither did any of the customers in the queue. Has anyone else ever said something cringworthy by mistake?