It is the name of a sauce of very popular use, It is the product of beating eggs, oil and vinegar or lemon. It is also often called mayonnaise in Spain. It means that it is from the Island of Mahon or Mayon, which is currently called the Island of Menorca. She is from Mahon, originally from Mahon.
Mayonnaise, also known as mayonnaise sauce is a sauce made with oil, egg, vinegar, salt and lemon; accompanying cold or hot dishes, salads, vegetables, etc.