kicken
to play soccer
Colloquial for playing soccer.
Nach der Schule treffen wir uns immer im Park zum Kicken.
After school, we always meet in the park to play soccer.

to play soccer / kick / kick out
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to play soccer
Colloquial for playing soccer.
Nach der Schule treffen wir uns immer im Park zum Kicken.
After school, we always meet in the park to play soccer.

The verb 'kicken' is a loanword from English ('to kick'). It has become established especially in colloquial language and youth slang.
Das Wort „kicken“ wird von jungen Leuten oft benutzt.
The word 'kicken' is often used by young people.
In the meaning 'Fußball spielen' (to play soccer), 'kicken' is clearly colloquial. In formal contexts or sports news, you would use 'Fußball spielen' instead.
Lass uns später eine Runde kicken gehen!
Let's go play a round of soccer later!
The meaning 'jemanden aus einer Gruppe entfernen' (to remove someone from a group) is typical youth slang and is used almost exclusively in the context of online games, chats, or social media.
Wenn du weiter störst, kicken wir dich aus der Gruppe.
If you keep causing trouble, we'll kick you out of the group.
When someone is removed from a group, the fixed structure is: 'jemanden (Akkusativ) aus etwas (Dativ) kicken' (to kick someone out of something).
Der Administrator hat ihn aus dem Forum gekickt.
The administrator kicked him out of the forum.
You can recognize the meaning from context: If it is about sports and leisure, it usually means 'Fußball spielen' (to play soccer). If there is an object like 'einen Stein' (a stone), it means 'treten' (to kick). In an online context with a person as the object, it means 'rauswerfen' (to kick out).
Die Kinder kicken auf der Wiese. (Fußball spielen)
The children are playing soccer on the meadow. (playing soccer)
to remove
'entfernen' and 'kicken' can both mean that someone no longer remains in a group or digital space. 'entfernen' is neutral and works in many situations, including formal texts. 'kicken' is colloquial and is used mainly in chats, online games, or groups. It sounds more direct and often harsher. In official situations, it is better to say 'entfernen'. Among friends or in a game, 'kicken' can sound more natural.

Nach der dritten Warnung kickt Felix den Spieler aus dem Chat.
After the third warning, Felix kicks the player out of the chat.
Die Administratorin entfernt den Nutzer aus der Gruppe, weil er ständig beleidigt.
The administrator removes the user from the group because he keeps insulting people.