Yes, it is a colloquialism - “to carry or wear a burden”.
My wife comes from a Polish mother and father, so she is Bi-Polish, and she says that the closest term is the Brooklyn Yiddish term “Schelp”.
(She speaks fluent Brooklyn - she did some work for the USAID program back in the 1970s, and actually traveled to the wilds of Brooklyn, and lived among the savage natives, and taught them about things like personal hygiene, clean drinking water, and being slightly nicer to their womenfolk).
Pretty brave for a literal “uptown girl” from the upper east side