Don't FLATTER yourself.
I'm just ignoring you.
The Big Bang Theory Season 3, Episode 7
Don't FLATTER yourself! She likes
everybody better than she likes me!
The Big Bang Theory Season 8, Episode 23
Or so I FLATTER myself, my lord.
Game of Thrones Season 8, Episode 4
Don't FLATTER yourself.
The Big Bang Theory Season 4, Episode 24