A vagina, with a loose, floppy labia that hangs down like the bill of a Duck-Billed-Platypus.

However, it should be noted that unlike the bill of the Duck-Billed-Platypus, most "platypussys" or "platypussi" for the grammatical sticklers amongst us, do NOT have electoreceptors along the lateral ridge.

n. The birth name of somebody who has changed their name. Most commonly attributed to trans people, but can be attributed to any person who has changed their name. (sometimes written as two words: dead name)

v. 1. To call somebody by their deadname.
v. 2. To out somebody's deadname to the public.

it is the pussy of a platypus... damn those furries

1. The plural form of the word platypus;
A semiaquatic egg-laying mammal that frequents lakes and streams in eastern Australia. It has a sensitive pliable bill shaped like that of a duck, webbed feet with venomous spurs, and dense fur.

2. Frequently used term to describe a group of "bitches".

A platypussy is a vagina that is so incredibly tight that the penetrator literally needs to use a shoe-horn to shove his cock inside of it. Following release and withdrawal, the shoe-horn is left extruding from the cunt, resembling a hairy mammal with a duck-like beak (i.e., a platypus).

The pussy of a platypus

when your vagina has become flattened because you got hit by a car.