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A term which means "really old man". At one time in history a Hans-Fredrik was a looked upon as a person with strengths never seen before. However a lot has changed since the 1850´s, nowadays the term is mostly used as slang for someone who is really old and lost touch with his time.

It could also refer to someone who is a total retard.
You are so Hans-Fredrik" "Don´t go all Hans-Fredrik now
by Hans Lover September 17, 2010
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