WordPress at a glance
action is not described

post_stuck action-hook . WP 4.6.0

Fires once a post has been added to the sticky list.

Usage

add_action( 'post_stuck', 'action_function_name_788' );
function action_function_name_788( $post_id ){
	// action...
}
$post_id(int)
ID of the post that was stuck.

Where the hook is called

stick_post()
post_stuck
wp-includes/post.php 2297
do_action( 'post_stuck', $post_id );

Where the hook is used (in WP core)

Does not used.