Definition of "Funk" :

noun: an earthy type of jazz combining it with blues and soul; has a heavy bass line that accentuates the first beat in the bar

noun: United States biochemist (born in Poland) who showed that several diseases were caused by dietary deficiencies and who coined the term vitamin' for the chemicals involved (1884-1967)

noun: a state of nervous depression

"He was in a funk."

verb: draw back, as with fear or pain