Snake-cased

The model name may be given in camel-cased or snake-cased format, and options can be provided if you want to automatically populate the resulting migration with column information.

Source: wiktionary

This list is stored as a Hash, where each key is a “snake-cased” representation of the class name and each value is a Class object representing the class itself.

Source: wiktionary

It’s idiomatic to use lowercased, snake-cased field names.

Source: wiktionary

The argument of the command should be a snake-cased description of what the migration will do: $ php artisan make:migration create_listings_table

Source: wiktionary