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

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

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

...probably playing "Donkey Kong"
on my classic Nintendo.
The Big Bang Theory Season 3, Episode 13