This is a viola.
This is from a review of a plunger-based sushi maker on Amazon.com: “This product is really easy to use. Cook the rice, fill…close, plunge, viola.”
This is from a review of a muffin recipe: “Just add some cinnamon streusel and viola - awesomeness!”
Here’s a description of a playground in Australia: “for a great few hours of fun… swings, a slide and some sort of climbing apparatus and viola! Happy kids!”
Sorry… actually, this one doesn’t annoy me at all – I’m just amused, in a geek-ish way, to think of folks shouting out the names of string instruments as they write their reviews. “just press this little button and… Cello!”