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+1F91A prohibits a line break after it, if it’s followed by an emoji modifier.
The CLDR project calls this character “raised back of hand” for use in screen reading software. It assigns these additional labels, e.g. for search in emoji pickers: back, backhand, hand, raised.
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:
"Talk to the hand" (or "tell it to the hand") is a slang phrase associated with the 1990s. It originated as a sarcastic way of saying one does not want to hear what the person who is speaking is saying.
It is often elongated to a phrase such as "Talk to the hand, because the ears ain't listening" or "Talk to the hand, because the face ain't listening."
Representations
System
Representation (click value to copy)
Nº
129306
UTF-8
F0 9F A4 9A
UTF-16
D8 3E DD 1A
UTF-32
00 01 F9 1A
URL-Quoted
%F0%9F%A4%9A
HTML hex reference
🤚
Wrong windows-1252 Mojibake
🤚
Encoding: GB18030 (hex bytes)
95 30 CE 30
RFC 5137
\u'1F91A'
Bash and Zsh inside echo -e
\U0001F91A
C and C++
\U0001F91A
C#
\U0001F91A
CSS
\01F91A
Excel
=UNICHAR(129306)
Go
\U0001F91A
JavaScript
\uD83E\uDD1A
Modern JavaScript since ES6
\u{1f91a}
JSON
\uD83E\uDD1A
Java
\uD83E\uDD1A
Lua
\u{1F91A}
Matlab
char(129306)
Perl
"\x{1F91A}"
PHP
\u{1f91a}
PostgreSQL
U&'\+01F91A'
PowerShell
`u{1F91A}
Python
\U0001F91A
Ruby
\u{1f91a}
Rust
\u{1f91a}
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