sheep
the black sheep: seeblack.
count sheep count imaginary sheep jumping over a fence one by one in an attempt to send yourself to sleep.
1977Harvey PitcherWhen Miss Emmie was in Russia Did you know that if you count sheep, it is watching the sheep jump that sends you off?
make sheep's eyes at someone look at someone in a foolishly amorous way.
separate the sheep from the goats divide people or things into superior and inferior groups.
☞ This expression alludes to the parable of the Last Judgement in Matthew 25:32–3: 'And before him shall be gathered all nations: and he shall separate them one from another, as a shepherd divideth his sheep from the goats: and he shall set the sheep on his right hand, but the goats on the left'.
a wolf in sheep's clothing: seewolf.