is not even approved phraseology for the radar environment.
Its gash RT and means nothing.
I'll just add that at the moderately busy UK airport that I do approach for, where probably at least circa 50% of the crews are foreign, 'orbit' is not unknown to cause a blank stare from the cockpit... well it would if you could see it. The obvious confusion in the reply sort of suggests it anyway.
Whereas "make a 360 to the left/right" works 99.9% of the time. Given that I am often 'orbiting' out of any of four holds I like phraseology that works.