A Golem is a sort of creature whose name became popular in several RPGs such as
Dungeons & Dragons, Pokémon, and
Chrono Trigger.
Traditionally,
Golems are rocklike creatures whose structure is covered with a near-impenitrable stone.
In the case of
D&D, there are several variations of Golem that use elements other than Stone, such as Iron and Flesh (which is a nod to Frankenstein).
There are mixed views as to exactly what a Golem looks like, but the general view is that a Golem is large, perhaps larger than a human, and is covered in a rocky mass. It is not all that pretty, and sometimes features a rather ugly mouth.
Golems seem to be submissive creatures, as they never really act on their own, and are controlled by whoever Summons/Finds them. Thus, they are not necessarily good or evil in spite of their evil-ish appearance.
Example:
"
GOLEM used
Rock Slide!" -Pokémon
"Um, so... A mad scientist is making a...
Golem. No! A
Flesh Golem, yeah. That's good." -Someone who plays D&D
"It's the end for you! Go, GolemTwins!" -Dalton, Chrono Trigger