It is often used in a humorous vein.

Of course this is all offered in a humorous vein; Nevertheless, some readers have been offended by the satire.

In a humorous vein, Whelan asked that no more rich food be sent, lest he become an epicure in his later years.

The wit of professor Sharp was also expressed in humorous vein.

Mr. Buonfiglio also offered some advice in a humorous vein.

And all of this in a very humorous vein.

Despite the death described in the third story, they are written in a humorous vein.

I refuse to think of it in a humorous vein and I don't want any wisecracks!

It was not long before science-fiction writers picked up this evocative concept, often using it in a humorous vein.

His books treat very serious subjects in a humorous vein.