That's why two times before we've come up with lists of foreign slang words the English language desperately needs -- some words you hear and think, "That could only have come from ____." But then there's the flip side -- some languages have words for concepts so weird or off-putting that we can thank the stars we don't have any use for them in everyday English. For example ...

The great thing about language is that it reveals so much about the speaker. Especially when we're talking about slang -- the fact that every gamer knows what "teabagging" is speaks volumes.

9 Swaffelen (Dutch)

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Means: To slap something with your penis.

In 2008, a Dutch dictionary company declared the winner of its esteemed "word of the year" competition was swaffelen, which means "to whip out your penis and hit something with it." And to quickly answer the question that 100 percent of you are asking, yes, the word is referencing an activity that apparently occurs there with some frequency. Penis-whipping the world is (or at least was) a craze in the Netherlands, if not an expression of downright national pride. You remember "planking," right? Well this is dick-planking.

The fad hit the headlines earlier that year when a Dutch student on vacation at the Taj Mahal decided to treat the eminent structure to a little Dutch hospitality by swinging his tube steak around the place and whacking it on the ancient pillars. He (of course) uploaded it to YouTube, where swaffelen apparently has an active community of fans and practitioners. We're just going to take their word for it.

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There are rules, of course. One can't simply pull out his dongadoodle and swing it around the place and call it swaffelen like some kind of noob. According to the publishers who selected the word, to be the textbook definition, the penis can't just swing -- it has to at least make an attempt to hit something. Wait, does the object have to be solid? Can you swaffelen a pillar of smoke? Or a ghost? We suppose that will be up to the courts to decide.

And while we're on deep cultural weirdness surrounding the human dick ...