For the idiomatic use of the articles in the genitive, see for example:

Rhythmic drive and a careful and idiomatic use of his instrumental forces characterize his compositions.

In the last part of the 20th century, the messianic view was highly criticized and the concept of idiomatic use began to gain support among some scholars.

"The idiomatic and grammatical use of language that most effectively presents ideas to the reader" (Bryan Garner)

The first known idiomatic use of the phrase "to send to Coventry" appears in the club book entry for 4 November 1765 relating to Barry:

This is the only idiomatic use in elementary C programming.

Mankundu, the name itself is popular for idiomatic use in common conversation jesting someone to mental hospital.

A rare example of a valid, if idiomatic, English use of this typology is the poetic hyperbaton 'Answer gave he none.'

A panacea for cancer is perfectly good idiomatic use.

Because of such stories, having to navigate between the two hazards eventually entered idiomatic use.