Moo Box 

It's just a moo box.

Jake, what's a moo box?

IT'S JUST A MOO BOX!!

Moo Box by The Half Blood Walrus November 6, 2012

Moo Box 

A box where men store their semen for a whole year and then give it to someone as an April Fools joke disguised as milk.

Man 1: "Here's some milk man, I just thought I would give you some"
*gives the Moo Box*
Man 2: "Thanks dude, I actually felt like milk"
*drinks the Moo Box*
Man 2: "HOLY FUCK- IS THIS SEMEN?! WHAT THE FUCK IS WRONG WITH YOU"

Moo Box by Siphiwe Tshabalala May 19, 2018

Moobox

Another term for "cow."

"What's that outside?"
"Oh nothing, just a couple of mooboxes."

Moobox by hatboxghost August 10, 2009