STD monday is the best day of the week in the army. On that day, you get to have sex with anyone you want (hint, STD). It's usually on a Monday and tons of babies are conceived with in that time frame.

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.