Top definition
basically, a turd that is so big it defies belief. usually done by a human.
oh my god! what the hell have you left in the toilet bob?

why thats a great dane dump martha. Tell me if its gone after the 4th flush.
by CiRcLe_ThEoRy January 10, 2008
Get the mug
Get a great dane dump mug for your dad James.