where a person has uncontrollable daihorear where you can not make it to the toilet or where if you make it the pan of the toilet is covered in pooh.
"oh dude i think i had anal spatted my pants"
"oh my god sean has just anal splatted the toilet pan"
"oh my god sean has just anal splatted the toilet pan"
by fazak kid May 23, 2006
Get the anal splatmug.