Well, if we're RUBBING genitals on things,
that's where I shine.
The Big Bang Theory Season 10, Episode 10
You realize
he's just RUBBING our noses...
The Big Bang Theory Season 4, Episode 5
Keep RUBBING.
The Big Bang Theory Season 1, Episode 11
That's just RUBBING alcohol.
The Big Bang Theory Season 3, Episode 3
Rubbing it in someone's face.
The Big Bang Theory Season 7, Episode 6