You won’t find this in any of our dictionaries:

When you’ve been out and seen one of your townsfolk (eg, the owner of the Petit Casino where you went for milk and orange juice), and you’ve said “Bonjour”… and you see them later (when you go back for the butter you should have remembered) don’t say “Bonjour encore”… Try: “Re-bonjour” (pron: rrrub-o[n] jour).