verb · to defile, violate, or rape (typically referring to a woman)

那个无辜的少女被歹徒糟蹋了。

verb · to insult, humiliate, or bring shame upon someone's reputation

他在大家面前故意说些难听的话来糟蹋我。

verb · to waste, spoil, ruin, or wreck resources, food, or objects

这么多粮食被白白糟蹋了，真可惜。