Can also be used when the child does something mischievous and stupid, where the mother secretly finds it funny, but does not want to encourage her son.
Friend: 'We've got so many easter eggs this year'
Mum: 'So have we. Maya, go and get egg from fridge'
(Son goes to fridge and holds up a chicken egg)
Son: 'This one mum?'
Mum: 'NOT EGG, YOU BAM'
*Gujarati family go to a fancy restaurant for a meal*
Mum: 'Maya, you want more naan?'
(Son is sat at the table, with his napkin over his face, with holes poked out for eyes)
Son: 'Yes please mum.'
Mum: 'GET TISSUE OFF YOUR FACE NOW YOU BAM'