Just looked it up,new one on me lol
http://www.thefreedictionary.com/pillocks
Noun 1. pillock - a person who is not very bright; "The economy, stupid!"
dolt, dullard, poor fish, pudden-head, pudding head, stupe, stupid, stupid person
berk - a stupid person who is easy to take advantage of
blockhead, bonehead, dumbass, dunce, dunderhead, fuckhead, hammerhead, knucklehead, loggerhead, lunkhead, muttonhead, numskull, shithead - a stupid person; these words are used to express a low opinion of someone's intelligence
klutz - (Yiddish) a clumsy dolt
simpleton, simple - a person lacking intelligence or common sense