He also invented the Franklin stove,
bifocals and the FLEXIBLE urinary catheter.
The Big Bang Theory Season 3, Episode 6
[Russian accent]:
Flexible men and women.
The Big Bang Theory Season 12, Episode 5
So, it appears your allegiances
are somewhat FLEXIBLE.
Game of Thrones Season 7, Episode 5
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