罰ばち当あたり

na-adjective, noun which may take the genitive case particle 'no', noun

damned; cursed; accursed

Describes a person or act that invites divine punishment or retribution. Often used in a semi-superstitious or moralistic context, sometimes lightly.

• そんな罰ばち当あたりなことを言いうものじゃない。

  You shouldn't say such a cursed thing.

• 罰ばち当あたりな行おこないをすると、いつか報むくいを受うけるよ。

  If you do accursed deeds, you'll get your comeuppance someday.