The way to handle Sudden Name Syndrome (ask your Cleric about treatments) is to look at any nearby object, then play Scrabble with the letters. The farmers name?! Uhlooks at keyboard Eybo, Eybo the farmer.
In subreddit r/DnD
In a post titled:
Dungeon Masters: QUICK Your players just asked for the name of a random NPC and your notes are too far away! What do you tell them?