
Raj is from India,
a TROPICAL country.
The Big Bang Theory Season 5, Episode 1

You got
the TROPICAL fruit kind?
The Big Bang Theory Season 7, Episode 5

As someone from the
TROPICAL subcontinent of India...
The Big Bang Theory Season 8, Episode 6

Groundbreaking revelations,
TROPICAL drinks, tell me
The Big Bang Theory Season 9, Episode 16