the poor man's somebody/something
US /ðə pʊr mænz ˈsʌmˌbɑːdi/ˈsʌmˌθɪŋ/
UK /ðə pʊr mænz ˈsʌmˌbɑːdi/ˈsʌmˌθɪŋ/

1.
le truc du pauvre, la version bon marché de
a cheaper or less sophisticated version of something or someone else
:
•
This instant coffee is the poor man's espresso.
Ce café instantané est l'espresso du pauvre.
•
He's often called the poor man's Brad Pitt because of his similar looks but lack of fame.
On l'appelle souvent le Brad Pitt du pauvre à cause de sa ressemblance mais de son manque de célébrité.