goldbrick

Noun

• anything that is supposed to be valuable but turns out to be worthless

• a brick-shaped block that looks like gold but is not

• an idle worthless person

• a soldier who performs his duties without proper care or effort

Verb

• avoid (one's assigned duties)
  • The derelict soldier shirked his duties
    

• deprive of by deceit
  • He swindled me out of my inheritance
    
  • She defrauded the customers who trusted her
    
  • the cashier gypped me when he gave me too little change
    

Related words

• Synonyms: 
  goof-off , ne'er-do-well , good-for-nothing , no-account , good-for-naught , fiddle , shirk , shrink from