mayonnaise

noun4

1. •
   A dressing made from vegetable oil, raw egg yolks, vinegar or lemon juice, and seasoning, used on salads, with French fries, in sandwiches, etc.

   • There are 250 foods, including mayonnaise, cheese and cocoa, that don't list ingredients at all. — 1985
2. •
   Any cold dish with that dressing as an ingredient.

   • We served a lobster mayonnaise as a starter.
3. •
   Any cream, for example for moisturizing the face or conditioning the hair, for which the base is egg yolks and oil.

   • They include cider vinegar, two pre-shampoo products, shampoo, conditioner, hair mayonnaise, oil, leave-in conditioner, end protector, revitalising styling spray and filtered water. — 2016
4. •
   (Australia, informal) Exaggeration.

verb1

1. •
   To cover or season with mayonnaise.

   • Jones himself presided in the kitchen, mincing truffles, mayonnaising lobster, booting waiters out the door with tray after tray of steaming savories and teeth-numbing sweets, […] — 1998

noun1

1. •
   (no longer used) In full Mayonnaise sauce or sauce Mayonnaise: alternative letter-case form of mayonnaise.