To get sexual gratification through self-stimulation; SYN. wank, she-bop, jack off, jerk off.
1. To bring to a highly developed, finished, or refined state; SYN. round, round off, polish up, brush up.
2. To improve or perfect by pruning or polishing; SYN. refine, fine-tune, down.
3. To give a shiney surface to (usually by rubbing or buffing); SYN. smooth, smoothen, shine.