I don't think it's quite that regional - I've heard & used it in this sense (british, not that old).
Not sure where it came from originally (people use all sorts of odd terms to describe pressing buttons, 'punch' being one I find weird).
I can think of one obvious pop reference, from The Simpsons[1]
[1] https://www.youtube.com/watch?v=OqjF7HKSaaI
I don't think it's quite that regional - I've heard & used it in this sense (british, not that old).
Not sure where it came from originally (people use all sorts of odd terms to describe pressing buttons, 'punch' being one I find weird).
I can think of one obvious pop reference, from The Simpsons[1]
[1] https://www.youtube.com/watch?v=OqjF7HKSaaI