Top Definition
What you can catch when you eat from the same food container as someone who just went to the bathroom and didn't wash their hands.
Dude, don't eat from that pretzel box - Mike just took a dump and didn't wash his hands. You don't want to catch butthrax.
by nymommy March 07, 2007
6 Words related to butthrax

Free Daily Email

Type your email address below to get our free Urban Word of the Day every morning!

Emails are sent from We'll never spam you.