Formerly a mildly sexual familiar term for attractive female popularised by Anglo-Welsh sitcom 'Gavin and Stacey'. Evolved into a form of informal salutation to the maternal parent by teenagers of mixed English-Welsh parentage and appalling standards of literacy residing in a small corner of Hertfordshire.
Pajama casual is a term used when working from home and preparing for a video conference. All business above the waist and your pajama pants down below.