Can be used ironically for a person demonstrating little professional skills or passion.

They are typically used ironically, with the prophesied events coming to pass due to the actions of one trying to prevent the prophecy.

It is frequently used ironically in that way.

It is sometimes used ironically by the "teuchters" themselves.

The phrase may be used ironically by heavy metal fans as part of their rebellious ethos.

In this case the title is used ironically.

Is the term used seriously or ironically?

It can be used satirically or ironically to lampoon a person's sense of self-importance.

May also be used ironically when someone is getting everything wrong.

Also used ironically for persons of below average height.