To leave less than a full portion of something in a misguided effort to be polite.
Sometimes this is an attempt to avoid guilt for consuming the last portion. Most commonly used in reference to food, but can be used with supplies and materials.
When a male rubs his sweaty nutsack over an unsuspecting sleeping victims forehead, resulting in a sound that if spelled out in words would be "Squiffle Squaff"
Only works when the nutsack is sweaty. If not sweaty, it will not make a sound, it will just tickle the victims forehead.
During Sex a peice of cooked deli meat is tied to a piece of twine and penetrated inside the partners hole / holes, then pulled out when the person reaches climax.