'And there you have it!'

• ". . . and here it is!"
• Entertainer's word
• Words of accomplishment sung with upturned palms
• "And ... there you have it!"
• "Behold my creation!"
• "Cool trick, huh?"
• "Voilà!": Hyph
• Bit of mock vocal fanfare
• Cry before applause

Wiktionary Word definitions in Wiktionary
interj. (alternative spelling of ta-da English)