look up any word, like cunt:
 
1.
A person who is being fucked or manipulated unknowingly despite their sensing that something is wrong.

An extension to the word "sheeple" ("sheep" plus "people"): Those who follow trends blindly, or those who follow their shepherd and flock mindlessly. But in the case of "sheep hole" they follow blindly despite getting fucked.
I accept that the people at this firm are sheeple, but Marie's team in particular turned out to be real sheep holes.
by Levi Sawyer May 05, 2011