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A useless thing you say when you don't care and want people to stop bugging you. It's like throwing a tantrum with your mouth.
'Ma-ma-se, ma-ma-sa,' she said when her mom asked why she didn't do her homework.
'Ma-ma-se, ma-ma-sa,' he texted his friend after the 10th time they asked about his ex.
During a group project, the guy just said, 'Ma-ma-se, ma-ma-sa,' and walked out.