https://en.wikipedia.org/wiki/Pick-up_game

In sports and video games, a pick-up game (also known as a scratch game or PUG) is a game that has been spontaneously started by a group of players. Players are generally invited to show up beforehand, but unlike exhibition games there is no sense of obligation or commitment to play. Pick-up games usually lack officials and referees, which makes them more disorganized and less structured than regular games, but the total number of players in such games globally is likely to be greater than the number playing in formal competitions and leagues.[1]

Without formal rules and regulations, pick-up games are often played with a less rigid set of rules.


https://www.urbandictionary.com/define.php?term=pick-up game
A game, usually in basketball, that starts spontaneously by a group of random people or with friends. There aren't any refs or officiating, and the calls are all on the players, which can get a little unfair and annoying depending on who you play with. The players pick the teams and rules.

https://www.quora.com/What-is-a-pickup-basketball-game
A Pick-up Basketball game is an informal game of basketball that has been spontaneously started by a group of players.

Pick-up games can be played full-court or half-court, depending on the number of players participating and general player preference.

Due to the lack of referees enforcing rules, the game is more relaxed (compared to a proper competitive match with rules) and there is usually a higher tolerance of fouls and rule violations.

Pick up games are played in both indoor and outdoor basketball courts, with the outdoor variety being most common around the world.

Talán csak annyi, hogy: a fiúk ma este összejönnek kosarazni egy kicsit.