A line of mums and pushchairs usually moving at the pace of the slowest toddler whilst completely blocking the pavement with complete disregard for other pedestrians.

Usually seen during the school run, such mums are usually having conversations about how trollied they got on Jägerbombs the night before, or how Kiyanne is a lazy bastard who needs to get a job.
"Sorry I'm late for work, I got stuck behind a Rolling Mumblock"
by Working Mum October 12, 2019
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