
that a hungry DONKEY placed between
two equidistant bales of hay
The Big Bang Theory Season 10, Episode 7

...and spun toward
a grotesque tailless DONKEY...
The Big Bang Theory Season 1, Episode 16

You just called Leonard
a syphilitic DONKEY.
The Big Bang Theory Season 1, Episode 17

I'm just contemplating
Buridan's DONKEY.
The Big Bang Theory Season 10, Episode 7

I mean, even Donkey Kong
had Donkey Kong Jr.
The Big Bang Theory Season 5, Episode 12