lit. ripe as a melon that rolls from its vine; refers to knowing something inside out, having it memorized perfectly, or being able to recite something with great ease

perfectly round; describes livestock or animals that are plump, round, and healthy

(colloquial) plump or rotund; used to describe something round or chubby like a melon

(dialect) descriptive of livestock that are extremely plump and well-fed, appearing as round as melons and oily to the touch