much of a muchness
US /ˈmʌtʃ əv ə ˈmʌtʃnəs/
UK /ˈmʌtʃ əv ə ˈmʌtʃnəs/

1.
大同小异, 没什么区别
very similar; almost the same
:
•
All the candidates for the job were much of a muchness, making it hard to choose.
所有求职者都大同小异,很难选择。
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When it comes to fast food, most chains are much of a muchness.
说到快餐,大多数连锁店都大同小异。