kiffen
to smoke weed
Colloquial for smoking cannabis products such as marijuana or hashish.
Er wurde von der Polizei erwischt, als er im Park kiffte.
He was caught by the police while he was smoking weed in the park.

to smoke weed
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to smoke weed
Colloquial for smoking cannabis products such as marijuana or hashish.
Er wurde von der Polizei erwischt, als er im Park kiffte.
He was caught by the police while he was smoking weed in the park.

The word 'kiffen' (to smoke weed) clearly belongs to colloquial language. It is used in informal conversations, but not in formal or official situations, such as in a doctor's appointment.
In dem Film geht es um eine Gruppe von Jugendlichen, die im Sommer ständig kiffen.
The film is about a group of teenagers who smoke weed all the time in the summer.
The verb 'kiffen' (to smoke weed) can stand on its own and then generally means to smoke cannabis. But you can also add an accusative object to specify what is being smoked.
Er hat zugegeben, dass er am Wochenende gekifft hat.
He admitted that he smoked weed on the weekend.
The noun 'der Kiffer' (male stoner) or 'die Kifferin' (female stoner) is derived from 'kiffen' (to smoke weed). These words describe a person who frequently consumes cannabis.
Er hat in der Schule den Ruf, ein Kiffer zu sein.
At school, he has a reputation for being a stoner.
to smoke
'rauchen' and 'kiffen' can both mean that someone inhales smoke and exhales it again. The difference is in the substance and the style. 'rauchen' is the general word, especially for cigarettes, cigars, or pipes. 'kiffen' colloquially means to smoke cannabis. So you can use 'rauchen' generally, but 'kiffen' only when it is about cannabis. The words can be confused because 'kiffen' can also be a kind of smoking, but not all smoking is 'kiffen'.

Er kifft nicht mehr, weil er klarer im Kopf bleiben möchte.
He no longer smokes weed because he wants to keep a clearer head.
Vor dem Eingang darf man nicht rauchen.
You are not allowed to smoke in front of the entrance.