WGel bracelet
WBeyblade
WBig Mouth Billy Bass
WBobby Jack Brand
WCaramelldansen
WCinnamon challenge
WClub drug
WCrazy Frog
WDick in a Box
WDido flip
WDigital Monster (virtual pet)
WEmpire State of Mind
WFlash mob
WFree Hugs Campaign
WFreedom fries
WGel bracelet
WGummibär
WHamtaro
WHaruhi Suzumiya
WHeelys
WHigh School Musical
WHipster (contemporary subculture)
WJack FM
WThe Ketchup Song (Aserejé)
WLoituma Girl
WLose Yourself
WMetrosexual
WMobile phone
WNaked butler
WOne weird trick advertisements
WPlanking (fad)
WPokémon
WPokémon Trading Card Game
WPoseur
WRave
WRazor (scooter)
WRock Band
WScene (subculture)
WSegway
WSilent disco
WSilly Bandz
WSleeved blanket
WSlender Man
WSoBe
WStan (song)
WTamagotchi
WTamagotchi Connection
WText messaging
WUndie Run
WWorld of Warcraft
WYu-Gi-Oh! Trading Card Game
WZumba