
It's Ferdinand T. Flag.
The Big Bang Theory Season 5, Episode 14

But you made me order it because you were
"too well-known in the FLAG community
The Big Bang Theory Season 10, Episode 10

Perhaps even a red FLAG,
and speaking of red FLAGs,
The Big Bang Theory Season 9, Episode 15

Have your men raise the white FLAG
and open the gates.
Game of Thrones Season 4, Episode 8

Yeah, which he rudely announced
on my FLAG show.
The Big Bang Theory Season 10, Episode 21