Index: wp-includes/taxonomy.php
===================================================================
--- wp-includes/taxonomy.php	(revision 18336)
+++ wp-includes/taxonomy.php	(working copy)
@@ -2160,6 +2160,63 @@
 }
 
 /**
+ * Remove term(s) associated with a given object.
+ *
+ * @package WordPress
+ * @subpackage Taxonomy
+ * @since 3.2.x
+ * @uses $wpdb
+ *
+ * @param int|array $object_ids The ID(s) of the object(s) to retrieve.
+ * @param array|int|string $terms The slug or id of the term to remove.
+ * @param string|array $taxonomies The taxonomies to retrieve terms from.
+ * @return bool|WP_Error Affected Term IDs
+ */
+function wp_remove_object_terms( $object_id, $terms, $taxonomy ) {
+	global $wpdb;
+
+	$object_id = (int) $object_id;
+
+	if ( ! taxonomy_exists($taxonomy) )
+		return new WP_Error('invalid_taxonomy', __('Invalid Taxonomy'));
+
+	if ( !is_array($terms) )
+		$terms = array($terms);
+
+	$tt_ids = array();
+	$term_ids = array();
+	foreach ( (array) $terms as $term) {
+		if ( !strlen(trim($term)) )
+			continue;
+
+		if ( !$term_info = term_exists($term, $taxonomy) ) {
+			// Skip if a non-existent term ID is passed.
+			if ( is_int($term) )
+				continue;
+			$term_info = wp_insert_term($term, $taxonomy);
+		}
+		if ( is_wp_error($term_info) )
+			return $term_info;
+		$term_ids[] = $term_info['term_id'];
+		$tt_id = $term_info['term_taxonomy_id'];
+		$tt_ids[] = $tt_id;
+
+	}
+
+	$delete_terms = $tt_ids;
+	if ( $delete_terms ) {
+		$in_delete_terms = "'" . implode("', '", $delete_terms) . "'";
+		do_action( 'delete_term_relationships', $object_id, $delete_terms );
+		$wpdb->query( $wpdb->prepare("DELETE FROM $wpdb->term_relationships WHERE object_id = %d AND term_taxonomy_id IN ($in_delete_terms)", $object_id) );
+		do_action( 'deleted_term_relationships', $object_id, $delete_terms );
+		wp_update_term_count($delete_terms, $taxonomy);
+		return true;
+	}
+	return false;
+
+}
+
+/**
  * Will make slug unique, if it isn't already.
  *
  * The $slug has to be unique global to every taxonomy, meaning that one