A safe word to scream in a mild German accent; especially around children, as to avoid dropping an F-bomb.
Father stubs his toe on table while carrying roast beef tray to supper in front of family; bites lip, wants to yell a plentitude of four letter words, but taps into his European ancestors and and utters "poopenstein"
That one guy who watches way to much porn and knows everything there is to know about porn from pornstars to weird fetiches.
Porstein: "Did you see Mia Khalifa's new foot video? She collabed with Piper Perri! It was the best 23 and a halv minutes og my life!"
Ordinary guy: "No fucking way, you creepy pornstein"