The gesture Wa La is most likely a common mispronunciation and misspelling of "voilà," which is a French exclamation meaning "there it is". A person saying "voilà" typically presents or reveals something with a flourish, often accompanied by an open-palmed hand gesture.
The gesture is made with the following motion:
- Extend one or both hands forward, palms facing up.
- Spread the fingers slightly while presenting the item, like a magician revealing a trick.
While less common, "wa la" could also be a misinterpretation of another hand