What is the meaning of He's true blue in idioms?

Answer 1

It refers to someone who is loyal and faithful. Blue has been the identifying colour of various factions in history. In the mid 1600's the Scottish Covenanters pledged to uphold Presbyterianism and were called ';true blue' as opposed to 'red' the colour of the Royalists. In the 1800's the term referred to the Tory Party. In America it referred to those who were politically sound

Answer 2

To say how much of an Aussie someone is in other parts of the world it means they are trustworthy.

It comes from the American Civil war. While we sometimes refer to the Civil War as the "Battle of the Blue and the Gray", but initially at least, that wasn't always the case. The main military units in the war were regiments sent from the various states. Initially, each state outfitted their soldiers as they saw fit, which led to some unfortunate confusions. A few northern states sent units outfitted in gray, while a few southern states sent units dressed in blue. This caused several cases of "friendly fire" accidents on both sides, until both armies proscribed uniform rules. In the meantime though, the Union soldiers had begun to refer to those Union forces dressed in blue as "True Blue" to distinguish them from the southern soldiers dressed in blue. As a result "true blue" came to mean anyone who was through and through on your side.

Answer 3

you are kind of sad but in some way you are happy