GREMLIN

elf, hob, gremlin, pixie, pixy, brownie, imp

(noun) (folklore) fairies that are somewhat mischievous

Source: WordNet® 3.1

Etymology

Noun

gremlin (plural gremlins)

A mythical creature reputed to be mischievously inclined to damage or dismantle machinery.

(by extension) Any mysterious, unknown source of trouble or mischief.

(surfing, slang) A young inexperienced surfer.

Synonyms: gremmie, gremmy

Anagrams

• merling, mingler

Source: Wiktionary