1 definition by WithaG
When a man straddles a womans face while stretching his testicular sack skin as flat and as wide as possible. The man then proceeds to place the stretched skin over the womans nose and mouth only leaving her eyes to be seen. The womans eyes will enlarge as the amount of oxygen is cut off drastically. The Sack Mask should then be removed for a undetermined amount of time then repeated as needed.
by WithaG April 27, 2011