
...it's actually EXTREMELY plausible.
The Big Bang Theory Season 4, Episode 6

very angry or EXTREMELY angry?
The Big Bang Theory Season 12, Episode 22

Ricin.
It's an EXTREMELY effective poison.
Breaking Bad Season 2, Episode 1

Oh, we'll make the puzzles
EXTREMELY challenging
The Big Bang Theory Season 9, Episode 8

because I happen to be
EXTREMELY prepared
The Big Bang Theory Season 5, Episode 15