"Yahoo!"

• "Woo-hoo!"
• I'm very very very pleased!
• Joyful shout
• Cry of delight
• Winner's cry
• "I won!"
• "Hot dog!"
• Ardent cry

Wikipedia Word definitions in Wikipedia
Yippee , also known as Yippee: A Journey to Jewish Joy , is a 2006 documentary film directed by Paul Mazursky .

Douglas Harper's Etymology Dictionary Word definitions in Douglas Harper's Etymology Dictionary
interjection of pleasure, exultation, etc., 1920; perhaps an extension and modification of hip (interj.).