Buck up, sissy pants.
The Big Bang Theory Season 5, Episode 1
...but I'd rather swim BUCK naked
across the Ganges...
The Big Bang Theory Season 3, Episode 4
and all you've got is "Buck up"?
The Big Bang Theory Season 5, Episode 1
There's gotta be other ways
you can make a quick BUCK.
The Big Bang Theory Season 10, Episode 17
Yes. Buck up.
The Big Bang Theory Season 5, Episode 1