griefer
n.— «Frerichs is what the online world calls a griefer—someone who plays to make others cry. They stalk, hurl insults, extort, form gangs, kill and loot. Although a tiny percentage of the millions who play online games, griefers are prolific in sowing distress and driving away thousands of paying customers.» —“Bullies Give Grief to Gamers Internet” by Alex Pham Los Angeles Times Sept. 2, 2002. (source: Double-Tongued Dictionary)
Further reading
Cat hair may be something you brush off, but cat hair is also a slang term that means “money.” In the same way, cat beer isn’t alcoholic — some people use cat beer as a joking term for “milk.” And imagine walking on a...
There are eight major planets, but more than a million minor ones, including asteroids. If you discover one, you get the honor of naming it. The Dictionary of Minor Planet Names includes minor planets named for rock bands, jazz musicians, poets, and...