Robert Johnson was fond of SAYING he was blue.
The master watches a blue movie every month.
a blue traffic light - in English we call it a "green traffic light." (BOOBOO: In Japan, they call the same blue-greenish color '青い' - so it isn't exactly the English "Green."
The guy that owes you MONEY gets condemned to your hate,
and every MONTH you feel blue when you menstruate.