This character is a Other Symbol and is commonly used, that is, in no specific script. The character is also known as rated for sex and kiss.
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+1F5E2 offers a line break opportunity at its position, except in some numeric contexts.
The Wikipedia has the following information about this codepoint:
The lips are a horizontal pair of soft appendages attached to the jaws and are the most visible part of the mouth of many animals, including humans. Vertebrate lips are soft, movable and serve to facilitate the ingestion of food (e.g. suckling and gulping) and the articulation of sound and speech. Human lips are also a somatosensory organ, and can be an erogenous zone when used in kissing and other acts of intimacy.
Representations
System
Representation (click value to copy)
Nº
128482
UTF-8
F0 9F 97 A2
UTF-16
D8 3D DD E2
UTF-32
00 01 F5 E2
URL-Quoted
%F0%9F%97%A2
HTML hex reference
🗢
Wrong windows-1252 Mojibake
🗢
alias
rated for sex
alias
kiss
Encoding: GB18030 (hex bytes)
94 39 F9 36
RFC 5137
\u'1F5E2'
Bash and Zsh inside echo -e
\U0001F5E2
C and C++
\U0001F5E2
C#
\U0001F5E2
CSS
\01F5E2
Excel
=UNICHAR(128482)
Go
\U0001F5E2
JavaScript
\uD83D\uDDE2
Modern JavaScript since ES6
\u{1f5e2}
JSON
\uD83D\uDDE2
Java
\uD83D\uDDE2
Lua
\u{1F5E2}
Matlab
char(128482)
Perl
"\x{1F5E2}"
PHP
\u{1f5e2}
PostgreSQL
U&'\+01F5E2'
PowerShell
`u{1F5E2}
Python
\U0001F5E2
Ruby
\u{1f5e2}
Rust
\u{1f5e2}
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