From www.KiltDay.com
"Utilikilts (referred to as UKs).. There are many others, including AmeriKilts (AKs) , Pittsburgh Kilts (PKs), Freedom Kilts (FKs), Bear Kilts (BKs), Kewl Kilts (KKs), NeoKilts (NKs), 21st Century Kilts (TFCKs).."