Carry on and Sing the blues

Carry on verb - To behave badly.

Sing the blues and carry on are semantically related In some cases you can use "Sing the blues" instead a verb "Carry on".

Carry on and sing the blues are semantically related in grieved topic. Sometimes you can use "Carry on" instead a verb phrase "Sing the blues", if it concerns topics such as regret, mourn, suffer or cause another to suffer.