mass noun informal
Trivial or foolish speech or writing; nonsense.
[no object]informal, archaic
Talk or write in a trivial or foolish way.
Late 18th century alteration of earlier twattle, of unknown origin.
When I walk, I waddle
As I spout my routine twaddle.
So, here’s advice to you:
Don’t take me as your model.
[We may be accused of publishing twaddle, but we do it with great sincerity.]