mary was a fiend when she was constantly asking susan for some chips after susan told her no like 500 times.
by saskia/crystal March 30, 2003
Get the fiendmug. by LEc2 May 14, 2003
Get the fiendmug. someone who is in general, a tool or a douchebag. Generally they are into anal sex, and are addicted to facebook games
Landon is a fiend.
by lookin93 October 25, 2009
Get the Fiendmug. When a Teammate or Opponent in Rocket League spams "Nice Shot!" or "What a Save!" in chat after missing an easy goal or save.
I know I missed that easy save, but that freaking fiend on the other team is spamming "Nice Shot!" in the chat, and that is totally uncalled for!
by MiladaOG August 16, 2017
Get the Fiendmug. to describe a really really ugly unpleasant person. usually met when you were unwholesomly drunk or out of your mind.
by ariee July 15, 2008
Get the fiendmug. to describe a really really ugly unpleasant person (usually facially). usually met when you were unwholesomly drunk or out of your mind.
by ariee July 15, 2008
Get the fiendmug. 