roll back & forth. Syn {'gre slong}. 2) {gzugs po phar slog tshur slog byed pa'i ming}, the name/word for rolling the body back and forth. {rta drel bong bu rnams bye thang 'jam po la nyal nas 'gre ldog rgyag pa}, Horses, mules and donkeys, lying in the soft desert sand, roll back and forth