Top definition
when you drink or eat something while goin to the bathroom and the same time,normally did when going number one but number two is occasional
Dude I did not feel like wasting time before my big meeting and i was really hungry so I did an in/outbox to speed things up.
by Davion Williams September 09, 2008
Get the mug
Get a [in/outbox] mug for your cat G√ľnter.