WordPress at a glance
filter is not described

get_terms_args filter-hook . WP 3.1.0

Filters the terms query arguments.

Usage

add_filter( 'get_terms_args', 'filter_function_name_5253', 10, 2 );
function filter_function_name_5253( $args, $taxonomies ){
	// filter...

	return $args;
}
$args(array)
An array of get_terms() arguments.
$taxonomies(array)
An array of taxonomies.

Where the hook is called

WP_Term_Query::get_terms()
wp-includes/class-wp-term-query.php 357
$args = apply_filters( 'get_terms_args', $args, $taxonomies );

Where the hook is used (in WP core)

Does not used.