Textbook German prepares you for formal situations, but it almost never teaches the vocabulary that Germans actually use among friends. Here are some slang terms that reveal much more of the language’s personality than any manual ever could.
"geil" — far beyond its original meaning
Literally, "geil" had a sexual connotation—but in modern colloquial usage, it has become synonymous with "cool," "amazing," "really good," and is used all the time by young people (and not-so-young people) without any negative connotations. "Das ist voll geil!" (That’s so cool!) is heard all the time.
"krass" — the universal reaction
Krass expresses surprise, shock, or intensity — it can be used for something amazing as well as for something shockingly negative, depending on the tone of voice. It’s one of the most versatile and commonly used slang terms in everyday spoken German.
Alter — the German “dude”
Literally “old man/age,” but used as a way to address someone informally, like “dude” or “bro” in Portuguese. Alter, was machst du? (dude, what are you doing?) — has nothing to do with the person’s actual age.
"chillen" — to relax in a modern way
A direct loanword from the English "chill," fully incorporated into colloquial German: ich chille zu Hause (I’m chilling at home). It shows how young Germans incorporate a lot of English vocabulary into their informal daily speech.
Bock haben — to be up for it
Ich habe keinen Bock means “I’m not up for it” / “I don’t feel like it” — an extremely common expression among young people to decline something informally, without sounding rude.
Why slang matters just as much as grammar
Mastering perfect grammar but never having heard these expressions can make you sound “bookish” in a real conversation with younger Germans — colloquial vocabulary is what makes the difference between “speaking correct German” and “sounding natural.”
Explore real slang and expressions with native audio
DeutschBloom has over 1,500 real, everyday colloquial expressions—not just textbook German.
Explore slang and expressionsRelated articles
While you read this, a native speaker just used that slang again
No book teaches you to speak the way Germans actually speak. DeutschBloom has real audio for everyday slang and expressions — try it free before you forget what you just read.