“Perhaps he is occupied”
Shout louder, for he is a god! Perhaps he is deep in thought, or occupied, or on a journey. Perhaps he is sleeping and must be awakened! (1 Kings 18:27 BSB)
What it sounds like today
Elijah politely allows that the god might be distracted.
The cultural key
Elijah's mockery is bawdier than the polished English lets on. As Baal's prophets rave, gash themselves, and get no answer, he heckles them with a list of reasons their god stays silent, and the third item, rendered 'occupied,' 'busy,' or 'wandered off' in most translations, is widely understood as a euphemism for relieving himself, in other words, the mighty Baal is on the toilet. The rest are just as cutting: a god 'deep in thought,' 'on a journey,' or fast 'asleep' and needing to be woken is no god at all. It is deliberate, crude satire against a deaf idol, and English versions quietly clean it up.
Recovered meaning
Elijah's taunt is coarse comedy the translations soften: maybe great Baal is busy in the bathroom, or away traveling, or asleep. A god who can be indisposed is exposed as no god.