Dr. Butt
Dr. Butt is a game pre-pubescent boys play with hold beer bottles. They take the beer bottles to their secret hideout and put their penis in the hole. If one of the boys decides he doesn't want to play Dr. Butt anymore he will shunned and forced to make new friends elsewhere.
Al didn't want to play Dr. Butt anymore so we are not friends.
Dr. Butt finger
A doctor who works in free clinic in Bend that does anal cyst exams and then forgets to take his glove off, which he then uses to write with a pen, turn on/off the light, etc.
"The clinic is full of butt germs because of Dr. Butt finger."