Floury water- That variety of drinks which is permitted to be accepted by an ascetic, observing Caturthabhakta (fasting for one day);
that water which becomes mixed with flour (of wheat etc.) (when something (plate etc.), smeared with sticky flour, is washed in it.
utsvedena nirvṛttamutsvedimaṃ- yena vrīhyādipiṣṭam......utsavedyateḥ.
(Sthā 3.376 Vṛ Pa 137)