This character is a Other Symbol and is commonly used, that is, in no specific script.
The glyph is not a composition. Its East Asian Width is wide. In bidirectional text it acts as Other Neutral. When changing direction it is not mirrored. U+1F90C prohibits a line break after it, if it’s followed by an emoji modifier.
The CLDR project calls this character “pinched fingers” for use in screen reading software. It assigns these additional labels, e.g. for search in emoji pickers: fingers, gesture, hand, hold, huh, interrogation, patience, pinched, relax, sarcastic, ugh, what, zip.
This character is designated as an emoji. It will be rendered as colorful emoji on conforming platforms. To reduce it to a monochrome character, you can combine it with Variation Selector-15: 🤌︎ The character can be changed in appearance, if it is followed by an emoji modifier. See the Emojipedia for more details on this character’s emoji properties.
The Wikipedia has the following information about this codepoint:
Che vuoi? (Italian pronunciation:[kevˈvwɔi]; transl. "what do you want?"), alternatively described as ma che vuoi?, ma che dici?/ma che stai dicendo? ("what are you talking about?"), or simply che? ("what?"), is one of the best known hand gestures of Italy. In English, it is sometimes referred to as "pinched fingers" or "finger purse" (Italian: mano a borsa). It is meant to express disbelief at what the other person is saying or doing, and/or to ridicule their opinions.