pterodactyl

The act of flapping or flailing one's arms as though they're wings and shrieking like a pterodactyl (facial expressions can be added as well, if you're so inclined) during sexual intercouse..or, I suppose, in any activity...

The other night, when we were having sex, I pulled a pterodactyl, just for shits and giggles.

So, I was walking down the street the other day and this guy just did the pterodactyl out of nowhere...

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