Incollino
Incollino is a term that can refer to a few different things, primarily related to adhesives or something small that sticks. In a culinary context, "incollino" might be used colloquially in some Italian dialects to describe a sticky, sweet sauce or glaze, often used on pastries or desserts. It would imply a substance that causes things to adhere together in a sugary manner.
More broadly, "incollino" can be a diminutive of "incolla," which means glue or adhesive in Italian. Therefore,