When I was a kid. My friends and me had a habit to climb a high tree, we call the high tree "Aglik" in our native language. We would be happy & proud if we can reach the highest level of the trunk. We can see everywhere from above. Back in the day, we didn't have high building or house.
Now, when I try to represented the pun of trunk. I add the concept with my childhood story.
In zoology, trunk (or proboscis) is a fusion of the nose and upper lip, elongated and specialized to become the elephant's most important and versatile appendage.
In botany, trunk (or bole) refers to the main structural member of a tree that supports the branches and is supported by and directly attached to the roots.
Thanks for the appreciation :)