Once I saw him sit on a bunch
of loose change and ADD it up.
The Big Bang Theory Season 7, Episode 18
...if I could ADD a third
new chess piece.
The Big Bang Theory Season 4, Episode 22
Are you sure?
We're celebrating our new ADD drug.
The Big Bang Theory Season 10, Episode 20
Let out some string, ADD altitude,
I'll go under and cut his line.
The Big Bang Theory Season 3, Episode 6
Yesterday, when I made
Stuart ADD them.
The Big Bang Theory Season 12, Episode 18