mooch off (of) (someone or something)
To ask for or obtain (something) through the charity of someone or something; to sponge off someone or something else. My brother has been mooching off me and my wife ever since he lost his job. You can't expect to get very far in life just by mooching off of the success of other people.
mooch about (somewhere)
To waste time or loiter (somewhere); to spend time (somewhere) idly or listlessly. Primarily heard in UK. I got off work a little early, so I'm just going to mooch about in the city centre for a bit before I head home. John's taken to mooching about his flat all day long ever since he lost his job.
mooch around (somewhere)
To waste time or loiter (somewhere); to spend time (somewhere) idly or listlessly. Primarily heard in UK. I got off work a little early, so I'm just going to mooch around in the city centre for a bit before I head home. John's taken to mooching around his flat all day long ever since he lost his job.