Apaḥpāna (Apahpana) is the name of one kind of Naraka (hell). If Brāhmaṇa(s) (Brahmanas),  Kṣatriya(s) (Kshatriya)or  Vaiśya(s)(Vaisya) or their wives consume Surā (Sura), by mistake, while drinking Soma during a yajña, they end up in this kind of Naraka.