An insultory phrase describing someone as an asshole, poop chute, assface, etc. Usually denotes extreme stupidity, retardedness, assism, and all-around shittiness.
"Don't fuckin kill me you Roman buttpipes!" cried Jesus during the crucifixion.
a long tube or hollow body used for inhalation of smoke, usually from burning pubic hairs in areas surrounding the anus.
"Please sanitize my buttpipe after you're finished."