Meaning
To think on one's feet / To be flexible
Example
Para ser professor, é preciso ter muito jogo de cintura.
To be a teacher, you need to really think on your feet.
Origin
'Jogo de cintura' ('waist play') is football/samba imagery: a quick, flexible hip move.
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More idioms
Acertar na moscaTo guess correctly / To hit the nail on the headAmigo da onçaA fake/false friendAndar na linhaTo toe the line / To behave properlyArmar um barracoTo cause a public sceneRodar a baianaTo cause a public scene / To go ballisticArrumar sarna pra se coçarTo ask for troubleArrastar as asasTo hit on someone / To flirtAbrir o jogoTo come clean / To open upArregaçar as mangasTo roll up one's sleeves / To get to workAgarrar com unhas e dentesTo hold on for dear life / To seize an opportunity