Lay on Definition 1 of 4Pro Tip 1/3Excessive Provision Used to describe a generous or excessive providing of something, often more than necessary. The conference laid on an immense spread of food. Pro Tip 2/3Special Occasions Often used when extra services or provisions are made for a special event or situation. They laid on a special bus service for the festival. Pro Tip 3/3Extra Effort Implies that someone has made an additional effort to provide something not normally available. Our hosts laid on a guided tour for us.