Top definition
An adjective to describe how a person behaves, (preferably about a sibling). A nectagon was once an alien that took over a poor family's bathroom or bedroom. Now, no one knows about nectagon and it has been used as an adjective since the 19th century.
"Janet, you're being such a nectagon right now!"
by Cheeeessseeee July 03, 2018
Get the mug
Get a nectagon mug for your cat Beatrix.