Buddy-buddy and In chorus

Buddy-buddy adjective - Closely acquainted.

In chorus and buddy-buddy are semantically related. In some cases you can use "In chorus" instead an adjective phrase "Buddy-buddy".

In chorus adverb - Speaking or singing at the same time; simultaneously.

Buddy-buddy and in chorus are semantically related. Sometimes you can use "Buddy-buddy" instead an adjective phrase "In chorus".