This character is a Other Symbol and is commonly used, that is, in no specific script. The character is also known as shout right.
The glyph is not a composition. It has no designated width in East Asian texts. In bidirectional text it acts as Other Neutral. When changing direction it is not mirrored. U+1F5EF offers a line break opportunity at its position, except in some numeric contexts.
The CLDR project calls this character “right anger bubble” for use in screen reading software. It assigns these additional labels, e.g. for search in emoji pickers: anger, angry, balloon, bubble, mad, right.
This character is designated as an emoji. It will be rendered as monochrome character on conforming platforms. To enable colorful emoji display, you can combine it with Variation Selector-16: 🗯️ See the Emojipedia for more details on this character’s emoji properties.
The Wikipedia has the following information about this codepoint:
Speech balloons (also speech bubbles, dialogue balloons, or word balloons) are a graphic convention used most commonly in comic books, comics, and cartoons to allow words (and much less often, pictures) to be understood as representing a character's speech or thoughts. A formal distinction is often made between the balloon that indicates speech and the one that indicates thoughts; the balloon that conveys thoughts is often referred to as a thought bubble or conversation cloud.
Representations
System
Representation (click value to copy)
Nº
128495
UTF-8
F0 9F 97 AF
UTF-16
D8 3D DD EF
UTF-32
00 01 F5 EF
URL-Quoted
%F0%9F%97%AF
HTML hex reference
🗯
Wrong windows-1252 Mojibake
🗯
alias
shout right
Encoding: GB18030 (hex bytes)
94 39 FA 39
RFC 5137
\u'1F5EF'
Bash and Zsh inside echo -e
\U0001F5EF
C and C++
\U0001F5EF
C#
\U0001F5EF
CSS
\01F5EF
Excel
=UNICHAR(128495)
Go
\U0001F5EF
JavaScript
\uD83D\uDDEF
Modern JavaScript since ES6
\u{1f5ef}
JSON
\uD83D\uDDEF
Java
\uD83D\uDDEF
Lua
\u{1F5EF}
Matlab
char(128495)
Perl
"\x{1F5EF}"
PHP
\u{1f5ef}
PostgreSQL
U&'\+01F5EF'
PowerShell
`u{1F5EF}
Python
\U0001F5EF
Ruby
\u{1f5ef}
Rust
\u{1f5ef}
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