Ignore them;
they're just mean people.
The Big Bang Theory Season 12, Episode 21
Did-did you invite me back
just so you could IGNORE me?
The Big Bang Theory Season 7, Episode 10
Look, normally, I can just IGNORE you.
The Big Bang Theory Season 2, Episode 12
Ignore her.
She's going through the change.
The Big Bang Theory Season 12, Episode 14
Ignore him.
The Big Bang Theory Season 9, Episode 12