Macnaha qaamuuska ee ereyga "dib u helid" waa in la helo shay mar kale, gaar ahaan ka dib marka uu lumo, la illoobo, ama la iska indho tiro. Waxa kale oo ay macnaheedu noqon kartaa in wax cusub laga helo shay hore loo yiqiin, ama in si cusub wax loo qiimeeyo.