noun
or culch ˈkəlch
( -es )
Etymology: perhaps from a French dialect form of French couche couch, bed, from Old French culche, couche — more at couch
1.
a. : material (as oyster shells) laid down on oyster grounds to furnish points of attachment for the spat ; also : similar material provided for any other shellfish
b. : a horny or gelatinous egg mass of a mollusk
2. chiefly New England : trash , rubbish