TV series example of the word

The Big Bang Theory Season 4, Episode 24
You should feel a small node-like object rolling back and forth along the bone.

The Big Bang Theory Season 7, Episode 17
Well, we just... we e-mailed back and forth a bit,

Breaking Bad Season 4, Episode 9
One restaurant, home, back and forth? l'm even more convinced it's bullshit

The Big Bang Theory Season 5, Episode 19
set forth by you in the relationship agreement.

Vikings Season 1, Episode 6
to me and to my family from this day forth?