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When a big member of anything refuses to work because of some petty dispute.
Achilles during the Trojan War, in the Illiad:
Agamemnon: BlahblahblahI'm king blahblahblah.
Achilles: Oh my Zeus shut up! *skulks off to tent*
Greeks:*die horribly*

"Jill and Jack couldn't agree on what color was the best, so Jill refused to participate in the PFD. What an Achilles in his tent!"
by Eurylochus November 08, 2009
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