a giant turd is typically used to describe someone or something that is exposed in a very public place, taking up way too much of that public place, with absolutely no place to hide.
i came over the crest of the hill and there was eddie, like a giant turd, in the middle of the road.
by harold hughes August 24, 2007
A corrupt politician.
Hillary Clinton is a giant turd.
by Awesome LInguist June 06, 2016