1 to have bad consequences

1 to make a fool of oneself

2 to make oneself a laughing stock

1 to have disastrous consequences

1 to affect adversely

2 to delay or hinder

3 to waste (an opportunity)

4 to mislead

1 mussel

1 to create trouble for oneself (idiom)

1 lit. to foster an ulcer and bequeath a calamity (idiom); tolerating budding evil can only lead to disaster

2 to cherish a viper in one's bosom