
They gave us PLAIN rice
instead of fried rice.
The Big Bang Theory Season 11, Episode 12

but he was a genius,
PLAIN and simple.
Breaking Bad Season 4, Episode 5

I mean, some people settle
for PLAIN old beef kidneys.
Game of Thrones Season 4, Episode 7

I hide in PLAIN sight, same as you.
Breaking Bad Season 3, Episode 8

Just PLAIN old Howard Wolowitz again.
The Big Bang Theory Season 6, Episode 5