He also invented the Franklin stove,
bifocals and the FLEXIBLE urinary catheter.
The Big Bang Theory Season 3, Episode 6
Oh, of course.
I'm nothing if not FLEXIBLE.
The Big Bang Theory Season 12, Episode 20
for the wrinkled,
but still FLEXIBLE, Madonna.
The Big Bang Theory Season 7, Episode 18
Can't you be a little bit FLEXIBLE?
The Big Bang Theory Season 2, Episode 16
as one continuous
FLEXIBLE piece.
The Big Bang Theory Season 11, Episode 13