TV series example of the word

The Big Bang Theory Season 7, Episode 2
Except the Halloween costume

The Big Bang Theory Season 1, Episode 6
Happy Halloween.

The Big Bang Theory Season 1, Episode 6
Um, yeah, Halloween.

The Big Bang Theory Season 6, Episode 5
...since this is our first Halloween party as boyfriend and girlfriend...

The Big Bang Theory Season 12, Episode 6
On Halloween. On this couch.