poop in a box
The phrase "poop in a box" is pretty random. To use the poop in a box phrase is fairly easy. You can either say it and confuse people, or the real reason why its poop in a box is because you write out poop and make a rectangle around poop, hence the phrase poop in a box...just write it down randomly, on a white board, in your room, on a sticky note, and it will totally confuse everyone. Its just supposed to make you smile when you see it.
You: What is that?
Me: Its poop in a box silly!
Me: Its poop in a box silly!
The sandy poop box
When having intercourse on the beach you pull out, stick your schlong in the sand and then instantly stick it into your girls poop box. Warning this could cause multiple cuts on your wenie and sand in your girls anus.
Wow my weiner hurts really bad because i performed the sandy poop box on my girl.