I always assumed it was a word pun on the paper size of 'foolscap' https://en.wikipedia.org/wiki/Paper_size#Traditional_British_paper_sizes https://en.wikipedi

I always assumed it was a word pun on the paper size of 'foolscap' https://en.wikipedia.org/wiki/Paper_size#Traditional_British_paper_sizes https://en.wikipedia.org/wiki/Paper_size#Traditional_British...