farts, special times for
Holding in a fart can yield great rewards if you release after a key phrase. For instance, after a scene in Star Wars where someone asked someone else to put a trace on a spaceship, I dropped cargo and declared "put a trace on that". Bravo, me.

You won't have to wait long. It's quite easy.

How do you do?
*parp*
Much better now, thanks.

What time is it?
*parp*
Too farty.

Hello!
*parp*
Calm down Jeffrey, he wasn't talking to you.

This last one works best if you're known for having an anus called Jeffrey
written by Jo* Blyt*, approved by Log

Also appropriate after certain demands, i.e 'Quick, press my nose', or 'Quick, pull my finger'. 'Quick' is imperative, to avoid clenching and possible follow-through on release.
written by Di*ne* Da*ce, approved by Log

The accepted linguistic term for fart so perfectly-timed that it lends emphasis or meaning to the surrounding context is pumptuation.
written by St*art *aid*er, approved by Log