Wiktionary
vb. (context idiomatic usually followed by with English) To associate closely; to socialize, consort, or mingle.
Usage examples of "rub elbows".
It didn't hurt to hang around and rub elbows with the fast and famous while he was helping himself to a good hot meal.
What we give them in return is the chance to rub elbows with celebrities.
Among that ilk, the entire point of going to Cambridge was to rub elbows with the fine and the mighty.
In those days Pilade's Bar was a free port, a galactic tavern where alien invaders from Ophiulco could rub elbows peaceably with the soldiers of the Empire patrolling the Van Alien belt.
Get out where you rub elbows and get flown places in private equipment.
But I'd like to know why you've decided you can't stand me to the point where you won't even take a potentially lucrative job just because we'd rub elbows occasionally.
Easy work, no real danger, and he got to rub elbows with the stars.
So she did her duty, greeting guests who had paid handsomely for the opportunity to rub elbows with royalty.