Dim. of butók. Also: to be constantly at it, do much, be diligent, assiduous. Indì ka magbutókbútok sang kádlaw, hibî, káon, óbra, etc. Don't laugh, weep, eat, work, etc. so much. Butókbutóki ang pagtahî. Be very diligent in sewing. (see úkud, písan, bákas).