#ccu

What does "ccu" mean?
CarCentralUS, CharacterCloseUp, CasualCatchUps, CedarCityUtah, CentroCulturalUCAB, ColorClubUK, ClassicCarsUSA, ChristChurchUSA, ChampCityUSA, ColourConfUSA, classicCarsUSA, CashCraverzUnited, chicardi_com_ua, CoastalCleanUp, chaser_club_uu, cans_com_ua, CosplayCleanUp, CarsandCoffeeoftheUpstate, CuentoConUstedes, CentroCulturalUniversitario, CityChicUSA, CannabisCoverUp, culíčkyChciUžHrozněDlouho, CrossCulturalUnderstanding, CrawfordCollinsUpdate, CrohnsandColitisUK, CosmicCrochetUK, car_culture_uk, CriticalCareUnit, ContraCulturaUrbana

ccu-k 29204 ccu-s 14725 ccu-rl 17638 ccu-p 2648 ccu-sa 8705 ccu-19 4521 ccu-18 4977 ccu-17 3068 ccu-16 1659 ccu-visit 2910 ccu-rve 2058 ccu-rls 1796 ccu-20 822 ccu-tiegames 1150 ccu-stomizedswimsuit 3636 ccu-fu 269 ccu-recfam 1316 ccu-homecoming 768 ccu-vb 256 ccu-sd93 704 ccu-ce 276 ccu-family 764 ccu-rllashes 597 ccu-liacanjar 477 ccu-d25 63 ccu-niverse 201 ccu-gammaphibeta 470 ccu-ci 36 ccu-zu 150 ccu-m2014 146 ccu-p2014 221 ccu-sajobfair 311 ccu-nicenterexpress 316 ccu-homecoming2k13 115