I don't see what's crazy about bringing a
BACKPACK with your own toilet paper and Purell.
The Big Bang Theory Season 8, Episode 19
Although we do have a BACKPACK
that you really don't wanna look in.
The Big Bang Theory Season 8, Episode 19
I mean, "crazy" for Star Wars crazy, not crazy
like we have a BACKPACK full of duct tape.
The Big Bang Theory Season 8, Episode 19
I think you're addressing him from
your emotional BACKPACK. Am I right?
Money Heist Season 3, Episode 5
Oh, man, how did you get
inside that BACKPACK?
The Big Bang Theory Season 5, Episode 11