GOLDBRICK
goldbrick
(noun) anything that is supposed to be valuable but turns out to be worthless
goldbrick
(noun) a brick-shaped block that looks like gold but is not
goldbrick, goof-off, ne'er-do-well, good-for-nothing, no-account, good-for-naught
(noun) an idle worthless person
goldbrick
(noun) a soldier who performs his duties without proper care or effort
fiddle, shirk, shrink from, goldbrick
(verb) avoid (one’s assigned duties); “The derelict soldier shirked his duties”
victimize, swindle, rook, goldbrick, nobble, diddle, bunco, defraud, scam, mulct, hornswoggle, short-change, con
(verb) deprive of by deceit; “He swindled me out of my inheritance”; “She defrauded the customers who trusted her”;
Source: WordNet® 3.1
Etymology
Noun
goldbrick (plural goldbricks)
Something fraudulent or nonexistent offered for sale; a swindle or con.
(US slang, dated) A shirker or malingerer.
(US slang, dated) A swindler.
Verb
goldbrick (third-person singular simple present goldbricks, present participle goldbricking, simple past and past participle goldbricked)
(US slang, dated) To shirk or malinger.
(US slang, dated) To swindle.
Source: Wiktionary