WordPress at a glance
action is not described

trashed_post action-hook . WP 2.9.0

Fires after a post is sent to the trash.

Usage

add_action( 'trashed_post', 'action_function_name_3549' );
function action_function_name_3549( $post_id ){
	// action...
}
$post_id(int)
Post ID.

Where the hook is called

wp_trash_post()
WP_Customize_Manager::trash_changeset_post()
wp-includes/post.php 2836
do_action( 'trashed_post', $post_id );
wp-includes/class-wp-customize-manager.php 2982
do_action( 'trashed_post', $post_id );

Where the hook is used (in WP core)

Does not used.