Definitions of bunk:

• noun:   a rough bed (as at a campsite)
• noun:   a long trough for feeding cattle
• noun:   unacceptable behavior (especially ludicrously false statements)
• noun:   a bed on a ship or train; usually in tiers
• noun:   beds built one above the other
• noun:   a message that seems to convey no meaning
• verb:   provide with a bunk

  Example: "We bunked the children upstairs"

• verb:   avoid paying
• verb:   flee; take to one's heels; cut and run
• name:  A surname (very rare: popularity rank in the U.S.: #38478)