
Oh, he's just helping us
develop a better, more EFFICIENT
The Big Bang Theory Season 11, Episode 8

came up with a more EFFICIENT
neutrino comm system.
The Big Bang Theory Season 11, Episode 8

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

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

But EFFICIENT.
Money Heist Season 3, Episode 4