She's EXTREMELY intelligent.
The Big Bang Theory Season 1, Episode 5
...it's actually EXTREMELY plausible.
The Big Bang Theory Season 4, Episode 6
But keep in mind,
I felt EXTREMELY important.
The Big Bang Theory Season 10, Episode 16
because I happen to be
EXTREMELY prepared
The Big Bang Theory Season 5, Episode 15
She's EXTREMELY intelligent,
just like you.
The Big Bang Theory Season 10, Episode 24