Buddy-buddy and In unison

Buddy-buddy adjective - Closely acquainted.

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

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

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