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1.
Someone who is very crabby and angry and who makes being around them no fun. This was used on Wonkette often. YES. It's "anger bear" not "angry bear."

"Anger bear" may be the mad version of a "sad panda"
When he found out that Scott has signed the heath care bill he turned in to a full-time anger bear.
by wonderwomyn April 20, 2010