raging

adj. immense, extreme, huge (e.g. "Yesterday I had a raging headache")

v. be furiously angry, behave furiously, be irate

A griefer is a slang term used to describe a player in an multiplayer video game who plays the game simply to cause grief to other players through harassment. Griefing could be considered a malignant form of emergent gameplay.
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Adjective
1. characterized by violent and forceful activity or movement; very intense; "the fighting became hot and heavy"; "a hot engagement"; "a raging battle"; "the river became a raging torrent"
(synonym) hot
(similar) violent
2. very severe; "a raging thirst"; "a raging toothache"
(similar) intense
3. (of the elements) as if showing violent anger; "angry clouds on the horizon"; "furious winds"; "the raging sea"
(synonym) angry, furious, tempestuous, wild
(similar) stormy

Noun
1. a feeling of intense anger; "hell hath no fury like a woman scorned"; "his face turned red with rage"
(synonym) fury, madness
(hypernym) anger, choler, ire
(hyponym) wrath
(derivation) ramp, storm
2. a state of extreme anger; "she fell into a rage and refused to answer"
(hypernym) anger, angriness
(derivation) ramp, storm
3. something that is desired intensely; "his rage for fame destroyed him"
(synonym) passion
(hypernym) desire
4. violent state of the elements; "the sea hurled itself in thundering rage against the rocks"
(hypernym) violence
5. an interest followed with exaggerated zeal; "he always follows the latest fads"; "it was all the rage that season"
(synonym) fad, craze, furor, furore, cult
(hypernym) fashion
Verb
1. behave violently, as if in state of a great anger
(synonym) ramp, storm
(hypernym) act, behave, do
2. be violent; as of fires and storms
(hypernym) be
3. feel intense anger; "Rage against the dying of the light!"
(hyponym) flip one's lid, blow up, throw a fit, hit the roof, hit the ceiling, have kittens, have a fit, combust, blow one's stack, fly off the handle, flip one's wig, lose one's temper, blow a fuse, go ballistic

a. & n. from Rage, v. i.
  

(p. pr. & vb. n.)
of Rage
  

li4 wan3 kuang2 lan2
To do one's utmost to stem a raging tide.
To turn back the powers of darkness. To save a critical situation.

ru2 huo3 ru2 tu2
Raging like a fire.
Literally red like a fire and white like reed flowers. Referring to great momentum.