Any such creature, character, animal, or etc which has a face or snout which splits into multiple pieces or seperates in multiple places in such a way as to resemble the tentacles of a squid. This is often used as a derogatory remark and is offensive in many ways.
Spartan 1: "Hey dude, see that Elite over there?"
Spartan 2: "Yeah, I hate those squidfaced bastards."
Spartan 1: "Tell me about it, fuckers..."