From Longman Dictionary of Contemporary Englishmooch around/about phrasal verb British English informalWALKto move around slowly without any purpose and doing very little Beth was happy to mooch around for hours in her nightdress. → mooch→ See Verb table
Examples from the Corpus
mooch around/about• Paige lay back, watching him mooch about, putting a pot over the fire and ranging their clothes to dry.• I didn't offer them more coffee, and when they'd gone I mooched around the flat hoping to wind down.• Rex mooched about the graves wondering when we were going to have lunch.• I was told one flight was full, and left the gate to mooch around the newsstands. 