derived from combination: sheep+people; used to describe people who follow the crowd and do not have their own opinion; ludzie-owce, ludzie idący za stadem, bezmyślni zwolennicy
The leader of this party has lots of sheeple to instruct. They do follow him voluntarily.
Lider tej partii ma wielu bezmyślnych zwolenników. Oni chętnie robią to, co im mówi.