Hell in the literal sense is a place in christian mythology that acts as an eternal dungeon of sorts. Christian tradition dictates that those who "sin" in any way and do not repent will be sent to hell after death, however, the criteria for what constitutes a sin will vary depending on the sect of christianity.
Bigots will often use their favorite book of fairytales to justify the persecution of women, homosexuals, and other groups as sinners who are damned to hell and must repent.
Person 1: How was Hell? I was sick yesterday Person 2: oh Hell was the worst! That Devil who teaches us didn't let us out for lunch until there was 5 minutes left until the bell rang for the next class we had.
Person 1: Thank god I didn't go to Hell yesterday.