muck about vs muck around

muck about and muck around both are verbs.

Word	Noun	Adjective	Verb	Adverb
muck about	No	No	Yes	No
muck around	No	No	Yes	No

As verbs, muck about and muck around are synonyms defined as:

muck about and muck around: do random, unplanned work or activities or spend time idly

Other synonyms of muck about include mess around, monkey, monkey around, potter, putter, tinker.

muck about (verb)	muck around (verb)
do random, unplanned work or activities or spend time idly	do random, unplanned work or activities or spend time idly