WordPress at a glance
action is not described

do_meta_boxes action-hook . WP 3.0.0

Fires after meta boxes have been added.

Fires once for each of the default meta box contexts: normal, advanced, and side.

Usage

add_action( 'do_meta_boxes', 'action_function_name_6853', 10, 3 );
function action_function_name_6853( $post_type, $context, $post ){
	// action...
}
$post_type(string)
Post type of the post.
$context(string)
string Meta box context.
$post(WP_Post)
Post object.

Where the hook is called

register_and_do_post_meta_boxes()
wp_dashboard_setup()
wp-admin/includes/meta-boxes.php 1440
do_action( 'do_meta_boxes', $post_type, 'normal', $post );
wp-admin/edit-link-form.php 46
do_action( 'do_meta_boxes', 'link', 'normal', $link );
wp-admin/edit-link-form.php 48
do_action( 'do_meta_boxes', 'link', 'advanced', $link );
wp-admin/edit-link-form.php 50
do_action( 'do_meta_boxes', 'link', 'side', $link );
wp-admin/includes/dashboard.php 126
do_action( 'do_meta_boxes', $screen->id, 'normal', '' );
wp-admin/includes/dashboard.php 129
do_action( 'do_meta_boxes', $screen->id, 'side', '' );
wp-admin/includes/meta-boxes.php 1442
do_action( 'do_meta_boxes', $post_type, 'advanced', $post );
wp-admin/includes/meta-boxes.php 1444
do_action( 'do_meta_boxes', $post_type, 'side', $post );

Where the hook is used (in WP core)

Does not used.