...what did you put
for his favorite amino ACID?
The Big Bang Theory Season 2, Episode 13
How could you for a moment think
that my favorite amino ACID is glutamine?
The Big Bang Theory Season 2, Episode 13
...like gamma-aminobutyric ACID.
The Big Bang Theory Season 3, Episode 2
And zero-gravity
is giving me crazy ACID reflux.
The Big Bang Theory Season 6, Episode 3
Your words fall like ACID rain
The Big Bang Theory Season 7, Episode 17