mess in my rump

defecation of the particularly messy variety; a 'bad dung'

just blew a 'bad dung', now i've got a mess in my rump!
don't know about this walking upright, this 'bad dung' has left a mess in my rump!
('rump' is SUCH a laughably goofy word!!)

by michael foolsley December 31, 2010