A name for something on the pavement or sidewalk that might be crap or something else entirely-you can not readily identify. Also a surname for a US Senator from Idaho.
by DutchRub April 10, 2011
A stated opinion that isn't true. Rather, just pulled out of the ass. When an ass fact is stated, one has the right to call "ass fact" on the person who delivers the untrue statement.
Mike said, "avocados are high in cholesterol" Bill called "ass fact" on Mike. Plants do not contain cholesterol.
by DutchRub February 20, 2010