sheep 
/ˈʃi:p/ noun
plural sheep /ˈʃi:p/ noun [count] 1 : an animal with a thick woolly coat that is often raised for meat or for its wool and skin
▪ a flock of sheep 2 : a person who does what other people say to do
▪ They followed every new fad like (a flock of) sheep.
▪ a flock of sheep
▪ They followed every new fad like (a flock of) sheep.
a wolf in sheep's clothing — see 1wolf
separate the sheep from the goats — see 2separate
— see also black sheep
