a U.V. an unidentified varmint as according to Duck Dynasty. This could refer to any type of small-ish critter in the roof of the duck call making room, but Jase claims a U.V. is a squirrel.
Jase: it's a U.V. - an unidentified varmint! Let's get something to scare it out of the roof! maybe it's something I can eat for lunch!
by Michelle L. Rigby October 17, 2012