funster /funˈstər/ (informal)

1. A person who causes merriment
2. A joker or prankster

• ukases
• uke
• ukelele
• ukes
• UKIP
• ukiyo-e
• Ukrainian
• ukulele
• ukuleles
• ula
• ULA
• ULCC
• ulcer
• ulcerate
• ulcerated
• ulcerates
• ulcerating
• ulceration
• ulcerations
• ulcerative
• ulcerative colitis
• ulcerative dermal necrosis
• ulcered
• ulcering
• ulcerous