By the beard of Azazel!,I can't remember where I plucked that one from. (I'll add the scource from now on.)

This is the more general definition: scapegoat:
1. a person or group made to bear the blame for others or to suffer in their place.
2. Chiefly Biblical.a goat let loose in the wilderness on Yom Kippur after the high priest symbolically laid the sins of the people on its head. Lev. 16:8,10,26.

Most from the OneLook list give this one. I just wanted to point out the distinction between the 'neutral' scapegoat and the 'monstruous' chimera , cause I was wondering why the goat part in the animal mixture is specifically distinguished as "she-goat".

What's wrong with those ancient Greeks anyway ? They must have had a very low opinion of women. Today's Argus with his 100 eyes was created or hired by Zeus to spy on Io , I guess 24 hours a day, cause he had no time to do that himself as he was too busy making eyes at the rest of the godesses.
After Hermes killed Argus him his eyes went to the peacock's tail.
All those eyes in vain... \:\/

"Get your goat" maybe is for you to explain, Zed?