I want to angrily call one of my friends a cake in a German sentence, but I don’t know German.
Du hast nicht mehr alle Kerzen auf der Torte
is a variation of
Du hast nicht mehr alle beisammen
Which means that he is losing an essential (mental) capacity (usually sanity or intelligence).
- It might not be a very common expression (the base one is though)
- 'Torte' is a fancy version of a cake, which is literally translated to 'Kuchen'. But Torte has a more snotty sound in this sentance. Maybe because it is more posh.
One of my favorite phrases is
Wenn der Kuchen spricht, haben die Krümel zu schweigen
When big daddy talks kids listen
Unfortunately its probably not what you are looking for, as you want to call your friend the cake not yourself ;)
But unfortunately for many and good for you there is a german (aggro-)rap subculture with tons and tons of slang expressions.
There you can find the word
meaning wimp, looser, etc
Kek originates from a turkish cake: Topkek or kek. So it may be your best try. But unfortunately for you (again ;) ) Topkek or kek has a total different english meaning, as its a intensification for lol.
Of cource you are allowed to make up words. German is very suitable for something like that.
You could call him a ..... link (warning vulgar)