Liquid leap is a SLASH'EM technique. Invoking this allows the hero to jump in a straight line. He may jump in any direction in which a wand can fire a ray. The maximum length of the leap depends on the skill level. He may leap through iron bars and closed doors, and from out of a bear trap. Liquid leaping in Sokoban carries a Luck penalty. The acid trail damages those in its path, unless they have acid resistance.
[This article could be improved by discussion of how maximum length relates to skill level.]