
der Furz
fart
Colloquial, often considered vulgar, for the audible or smellable release of intestinal gas from the anus.
In der peinlichen Stille ließ jemand einen lauten Furz.
In the embarrassing silence, someone let out a loud fart.
fart
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fart
Colloquial, often considered vulgar, for the audible or smellable release of intestinal gas from the anus.
In der peinlichen Stille ließ jemand einen lauten Furz.
In the embarrassing silence, someone let out a loud fart.

load of nonsense
Colloquial and derogatory for an insignificant, nonsensical, or ridiculous idea or matter.
Seine geniale Geschäftsidee war am Ende nur ein Furz.
In the end, his brilliant business idea was just a load of nonsense.
This word is very colloquial and is often perceived as vulgar or childish. You should definitely avoid it in formal or polite conversations.
Bitte benutze solche Wörter nicht am Esstisch.
Please don't use words like that at the dinner table.
The literal meaning (intestinal gas) is often used with the verb 'lassen' (to let). The figurative meaning (nonsensical idea) is usually used with 'sein' (to be) or 'werden' (to become).
Der Hund hat einen Furz gelassen.
The dog let out a fart.
The noun 'der Furz' (fart) belongs to the verb 'furzen' (to fart), which describes the corresponding action. Both words belong to the same colloquial register.
Es ist unhöflich, in der Öffentlichkeit zu furzen.
It is rude to fart in public.
When an idea or plan is referred to as 'Furz' (load of nonsense), it doesn't just mean that the idea is bad. It expresses that it is completely insignificant, ridiculous, and not worth talking about.
Er sprach von einer Revolution, aber am Ende war alles nur ein Furz.
He talked about a revolution, but in the end it was all just a load of nonsense.
wind
Both Wind and Furz can refer to the release of intestinal gas. Wind is a medical or polite euphemism, whereas Furz is colloquial and often sounds vulgar. Wind is more appropriate in a polite situation; among friends, Furz can also be used.

Der Furz war so laut, dass alle am Tisch lachen mussten.
The fart was so loud that everyone at the table had to laugh.
Entschuldigen Sie den Wind, ich habe heute starke Blähungen.
Excuse me for the gas; I've had severe bloating today.