refers to personal financial health lamentation that is experienced by people who squander their salary (or additional bonus payment) because of too much excitement about the holiday season at the end of the year (i.e. Christmas and New Year's celebrations).
What then happens, later on, is desperate borrowing to cover expenses such as rent, school fees, utility bills, etc. Some will even borrow to return back to their diaspora workplace e.g., they'd be asking for money to go back to South Africa.
"Mwedzi wokutanga warohwa neJanuary disease unoda dzinodonza. But since uri mufesi wangu kana usina cash huya kuno tikubatanidze.