Define Asstube Meaning

Asstube
the lower part of the digestive track adjacent the anus; the rectum

If you have rough anal sex then you may end up with a sore asstube for a while.
By Sammy
ASSTUB
A Kate-ism for the size serving of ice cream necessitated by a break up from any ASSTARD or fucktard. FLAVORS include "You Deserve Better" and "College Boyfriend THAT ASS" as well as "Let's Just Be Friends" and "Drakkar Noir." The ASSTUB serving is equivalent to the amount of suffering said ASSHAT has inflicted. Any way you slice it, it's gonna be big.

"Wow, I can't believe I dated that douchetard. I'm going to need to dive into an ASSTUB of ice cream..."
By Audrey
Asstube
A tube that is shoved up someone's ass. Liquids are then able to be passed through the tube into the person's anal cavity therefore giving them special sensations.

I shoved that asstube into Alby's ass and then I filled his ass with piss and rocketsauce.
By Henryetta