From Lamborghini Wiki

This is the {{!}} meta-template.

This is an auxiliary template allowing to encode "|" within template parameters. It is necessary if the character is used in wiki table syntax, or if the parameter is automatically wikilinked and you wish to use a pipe to specify different link text from the target page name. In other cases it is better to use "|".

This template cannot be used for putting the character as text in a wiki table; in that case, again, "|" can be used.

Note that no special template is needed for "!" (exclamation mark).

This is a high risk template, and it usually cannot be WP:SUBST (see conditions for substing on !).

See also

• {{!!}}
• {{!-}}
• {{-!}}
• {{broken bar}}
• {{'}} and related
• Wikipedia:Qif conditionals
• {{pipe}} - Note that this one looks like {{!}} but has a very different meaning for the MediaWiki parser and thus has different functionality.