
Little ball of FUR
The Big Bang Theory Season 1, Episode 11

♪ Little ball of FUR...
The Big Bang Theory Season 12, Episode 19

But I realize
they're gluing FUR everywhere,
The Big Bang Theory Season 7, Episode 21

Little ball of FUR
The Big Bang Theory Season 2, Episode 21

♪ Little ball of FUR
The Big Bang Theory Season 12, Episode 19