goldbricking vs slacking

goldbricking and slacking both are nouns.

Word	Noun	Adjective	Verb	Adverb
goldbricking	Yes	No	No	No
slacking	Yes	No	No	No

As nouns, goldbricking and slacking are synonyms defined as:

Other synonyms of goldbricking include goofing off, shirking, soldiering.

goldbricking (noun)	slacking (noun)
the evasion of work or duty	the evasion of work or duty