'Frankenstyle' refers to the naming convention that is used to uniquely identify a Moodle plugin based on the type of plugin and its name.

Martin Dougiamas is credited with inventing the word 'frankenstyle'. (It is a great word!)

Format

Frankenstyle names have a prefix and then a name, separated by an underscore.

The prefix is determined by the type of plugin. For example, the prefix for a module is mod.
The name is the name of the plugin. (Plugin names are always made of lower-case letters).

So the frankenstyle name for the quiz module is mod_quiz.

Plugin types

Frankenstyle is used in:

All table names for a plugin must begin with its frankenstyle name (after the standard Moodle table prefix).

Examples: mdl_mod_quiz, mdl_mod_quiz_attempts

All capabilities for a plugin use the frankenstyle name, except with a / instead of a _.

Example: mod/quiz:viewattempt

Please add more as they come up.