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1.
an adjective placed as a prefix to either a verb or a noun. It is used to signify something pathetic or an action that is done poorly.
Wow he sucks at texting girls, what a neumann-flirt...
by Mahanos April 12, 2011
 
2.
Crazy; white cracker often seen wearing a beanie or some form of head gear.
Man, that guy over there is acting pretty neumann.
by Beobeast October 12, 2008