Blow Through 

When your wiping your ass and you finger breaks through the toliet paper.
It should be noted that there are diffrent catagories of blow through.
category 1. You get some shit on your finger.
category 2. Your whole finger goes in.
category 3. Your hand goes in up to the knuckle.
category4. The most extreme case of blow through in which your whole hand enters the rectum.

My roomate got the cheap TP and I had a case of category 2 blow through.

Blow Through by Alix McQ October 12, 2008

Oh my god I've just had a BLOW THROUGH 

Blow through

When you fart and half of your insides coming flying out after it, making quit a mess.

When you pass some gas (gassy ass) & a lump follows - which hits the
back of your pants like a bullet..

Hey man, you eat that curry your gonna have a mighty blow through..

Hey man, you eat that curry your gonna have a mighty blow through..

Oh my god I've just had a BLOW THROUGH by Mrs Stevo July 1, 2005