
AMY: My goodness, that form of stimulation
is highly EFFICIENT.
The Big Bang Theory Season 10, Episode 23

That seems a fairly EFFICIENT arrangement.
The Big Bang Theory Season 2, Episode 15

I always considered your father
a very effective and EFFICIENT man,
Game of Thrones Season 7, Episode 4

But EFFICIENT.
Money Heist Season 3, Episode 4

It would be way more EFFICIENT.
The Big Bang Theory Season 11, Episode 8