oops paint
n.β Β«Hirschfieldβs paint store donated what is called in the trade “oops” paintβpaint that customers brought back or was improperly mixed or is substandard.Β» ββGang scrawls fade as mural grows” by RubΓ©n Rosario Pioneer Press (Minneapolis-St. Paul, Minnesota) July 18, 2007. (source: Double-Tongued Dictionary)