
Well, this is rare, I don't know WHICH
one of you I want to stop talking first.
The Big Bang Theory Season 10, Episode 22

Which reminds me, you have broad hips
and a certain corn-fed vigor.
The Big Bang Theory Season 4, Episode 1

...WHICH later turned out to be the moon.
The Big Bang Theory Season 6, Episode 20

Which is why I got you
this Pink Power Ranger.
The Big Bang Theory Season 10, Episode 7

Oh, speaking of WHICH,
The Big Bang Theory Season 7, Episode 5