A trip to a shop to ‘mooch’ around, usually just looking at stuff and on the occasional trip picking up a small item. The shops are usually British shops such as Poundland. A moo moo sharoo has no specific purpose other than too full your time.
Person 1 - “Hey would you like to go for a moo moo sharoo?”
Person 2 - “Of course I’ve got nothing else to do, let’s go to Poundland.”
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