A person who you identify as a your twin whom isn’t related! Has the same interests, habits and crazy mindset as you. Usually a Twinny is a person who you slag off constantly but is still your best friend.

When you eat dirt for the first time and leave your family to build a shack in the woods

two really cool people who think the same and are really awesome

Two really cool girls who think alike.

Slang for twin-tip, or park, skis.

An fantasmagoracle, amazingly beautiful twinny who you get along very well with and you constantly try and be better than BFFS (usually boy and girl)

Twinny is twinny because twinny twinny.