
Lots of LUCK--
it's way harder than it looks.
The Big Bang Theory Season 12, Episode 9

- Okay, well, good LUCK with it.
- Thank you.
The Big Bang Theory Season 10, Episode 8

- Here you go, good LUCK, bye.
- Oh, wait, wait.
The Big Bang Theory Season 1, Episode 11

I'm just there to do my work
and, with a little LUCK,
The Big Bang Theory Season 7, Episode 5

Good LUCK. People have been saying that
for 600 years.
The Big Bang Theory Season 10, Episode 15