The term 'Filled In Holes' can refer to two different crossword solutions: CAKED (5 letters) and CALKED (6 letters). CAKED is a verb that means to cover something with a thick layer of a substance, usually a sweet food such as frosting or icing. CALKED is a verb that means to fill in a crack or crevice with a material such as putty or sealant. Both terms are used to describe the process of filling in holes or cracks in a surface.