Derived from rhyming slang of Tommy tit, meaning shit, and is directed at what you do in public toilets that are unclean. If you need a shit in a public toilet and it is to dirty to sit down you poo into your coat pocket, or gown pocket hence the Royal connection, to prevent having to touch anything else.

A Bloomer is someone with a bright outlook on life who is optimistic in nature. Bloomer's frolic in every opportunity to be happy and try to make the most out of life. The opposite of a Bloomer is a Doomer. The term Bloomer originated specifically as a counter to the Doomer on sites especially like 4Chan.