the poor man's somebody/something
US /ðə pʊr mænz ˈsʌmˌbɑːdi/ˈsʌmˌθɪŋ/
UK /ðə pʊr mænz ˈsʌmˌbɑːdi/ˈsʌmˌθɪŋ/
1.
a cheaper or less sophisticated version of something or someone else
:
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This instant coffee is the poor man's espresso.
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He's often called the poor man's Brad Pitt because of his similar looks but lack of fame.