
Yes, the DISAPPOINTING sex.
The Big Bang Theory Season 3, Episode 2

That's DISAPPOINTING.
Breaking Bad Season 2, Episode 2

That's DISAPPOINTING.
The Big Bang Theory Season 5, Episode 20

Hate DISAPPOINTING Leonard,
The Big Bang Theory Season 12, Episode 15

for after you've had
DISAPPOINTING coitus with Penny.
The Big Bang Theory Season 7, Episode 2