This is the 3491st most frequent Catalan word.
jan
"Jan" is a Catalan male given name, equivalent to "John" in English.
Here, 'Jan' is used as a proper noun, referring to the name of a person.
En Jan és un noi molt simpàtic.
Jan is a very friendly boy.
In this sense, 'jan' is used metaphorically or affectionately to describe someone known by their friendly behavior, as a colloquial term.
El jan del carrer sempre saluda quan passa.
The Jan from the street always greets when passing.
Here, 'jan' could imply a noble or kindhearted figure, used in a figurative or illustrative manner.