Want a 5? Add these

Goofy yell
Vanoss sound effects (samples on YouTube by CustomBrothers, easy get of use Google Converter)
Mark Hamill Joker Laugh
B**ch you guessed it
Shorten "Aint Nobody Got Time For That" Im giving you gold here, I can easily say this would make your app more popular.

Adrian the Beast Thief about Fun Sounds Instant Buttons - Best Soundboard