The children soon spoilt its beauty by having snowball fights and leaving their footprints all over it Spoil--make sth useless/unsuccessful/not veryl good Her selfish behavior completely spoiled the evening. Those children are thoroughly spoilt• The children soon spoilt its beauty by having snowball fights and leaving their footprints all over it. • Spoil—make sth useless/unsuccessful/not very good • Her selfish behavior completely spoiled the evening. • Those children are thoroughly spoilt!