J Random - meaning and definition. What is J Random
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What (who) is J Random - definition

GAME MECHANIC OF RPG
Random battles; Random battle; Wandering monster; Wandering monsters; Random enemy encounters; Random enemy encounter; Random encounters

J. Random         
NAME FOR AN ARBITRARY PROGRAMMER
J. Random Websurfer; J. Random; J. Random X
<jargon> /J rand'm/ (Generalised from J. Random Hacker) Arbitrary; ordinary; any one; any old. "J. Random" is often prefixed to a noun to make a name out of it. It means roughly "some particular" or "any specific one". "Would you let J. Random Loser marry your daughter?" The most common uses are "J. Random Hacker", "J. Random Loser", and "J. Random Nerd" ("Should J. Random Loser be allowed to gun down other people?"), but it can be used simply as an elaborate version of random in any sense. [Jargon File]
J. Random Hacker         
NAME FOR AN ARBITRARY PROGRAMMER
J. Random Websurfer; J. Random; J. Random X
<jargon> /J rand'm hak'r/ MIT jargon for a mythical figure; the archetypal hacker nerd. This may originally have been inspired by "J. Fred Muggs", a show-biz chimpanzee whose name was a household word back in the early days of TMRC, and was probably influenced by J. Presper Eckert (one of the co-inventors of the electronic computer). See random, Suzie COBOL. (1996-10-16)
Random algebra         
MATHEMATICAL THEORY
Random forcing; Random real algebra; Random real
In set theory, the random algebra or random real algebra is the Boolean algebra of Borel sets of the unit interval modulo the ideal of measure zero sets. It is used in random forcing to add random reals to a model of set theory.

Wikipedia

Random encounter

A random encounter is a feature commonly used in various role-playing games whereby combat encounters with non-player character (NPC) enemies or other dangers occur sporadically and at random, usually without the enemy being physically detected beforehand. In general, random encounters are used to simulate the challenges associated with being in a hazardous environment—such as a monster-infested wilderness or dungeon—with uncertain frequency of occurrence and makeup (as opposed to a "placed" encounter). Frequent random encounters are common in Japanese role-playing games like Dragon Quest, Pokémon, and the Final Fantasy series.