Skylasers, a plural noun, is a deragatory term for the Druidic spell "moonfire" in the popular MMO World of Warcraft. Often exemplified by adding a "pewpew" at the end of it, pertaining to a shooting sound made by children.
(In video games where you can build) when a player builds a base high in the sky in order to get the high ground advantage over another opposing player with things such as a better view of the player, cover/concealment, sniping point, etc.