(informal) the soft and fluffy growth of hair on the chin of an adolescent
noun a slang name for an Eton jacket (slang) any of various similar styles of short jacket worn by men
noun (mainly US, taboo, slang) a remote or insignificant place: some guy from bumfuck, Iowa
bumfuck, egypt A very distant and remote place; dead end The destination of or a point along a long and circuitous march (1970s+ Army)
to confuse or fluster.