Janet and John

English

Etymology

From the Janet and John series of early reading books, published in the UK in 1949–50.

Adjective

Janet and John

1. (UK) Childishly simple or obvious, resembling something found in a book for very young children.

   There is an instruction manual, but it's all very Janet and John.

   • 2014, John Hutton, Leigh Lewis, How to Be a Minister: A 21st-Century Guide‎^[1]:

     Apologies if what follows seems a bit Janet and John. But if you already know it all it will at least be welcome confirmation and, if you don't, well at least someone tried to give you some genuinely well-intentioned advice.