
No hurry, Mother. Tell them more
about their SECRET love for each other.
The Big Bang Theory Season 2, Episode 15

Sheldon is a very smart man, and
he obviously wants to keep this a SECRET.
The Big Bang Theory Season 6, Episode 8

He tried very hard to keep your SECRET.
The Big Bang Theory Season 2, Episode 1

FYI, this is a bag from Victoria's Secret.
The Big Bang Theory Season 3, Episode 17

but the blowfish
has a SECRET weapon,
Breaking Bad Season 2, Episode 7