Fravis is a term for garbage or junk that comes in a number of pieces, often but not necessarily particulate, such as lego strewn all over the floor. In common use, according to very wrong people.
by Wrong Listener March 03, 2022
Specifically, in the Florida Everglades, fravis is the red mangrove leaf that sticks to the bow of the Lamoille at waterline and does an annoying "flip flip flip flip" ad infinitum and drives paddlers nuts, until removed by the kind and noble bow paddler.""
by scottyadks December 06, 2010