monkey vs scallywag

monkey and scallywag both are nouns.

Word	Noun	Adjective	Verb	Adverb
monkey	Yes	No	Yes	No
scallywag	Yes	No	No	No

As nouns, monkey and scallywag are synonyms defined as:

Other synonyms of monkey include imp, rapscallion, rascal, scalawag, scamp.

monkey (noun)	scallywag (noun)
any of various long-tailed primates (excluding the prosimians)	one who is playfully mischievous
one who is playfully mischievous	a deceitful and unreliable scoundrel
	a white Southerner who supported Reconstruction policies after the American Civil War (usually for self-interest)

monkey (verb)	scallywag (verb)
do random, unplanned work or activities or spend time idly
play around with or alter or falsify, usually secretively or dishonestly