Another name for Bullsquid. Sometimes spelled as two different words. A fictional two-legged creature from the popular game Half-Life. They have 5 red tentacles surrounding its mouth and spots running down its back. The High definition model for the bullsquid has two spikes at the end of its tail, but the original has no spikes. If you get too close to one, it'll bite and toss you backwards. If you're not within biting range, it'll constantly spit acid at you. If you're near death, the bullchicken will finish you with a gibbing tail whip instead of biting you. Bullchickens are agressive, but also easy to kill. Bullchickens are amphibious creatures. They're also attracted to radiation and are often seen in radioactive waste pools. They feed on headcrabs. Also, if a bullsquid sees any gibs within its area, it may stop attacking and eat them. Bullchickens may attack each other if there's more than one in an area, possibly for food or for mating. They live in a place called Xen. Bullchickens may be vicious, but some may not attack humans, and may actually be more scared of them than humans are afraid of them. For example, when Gordon Freeman was accidentially teleported to Xen for the first time after the Resonance Cascade, he saw two bullchickens, but they did not attack him. Another reason for their agressiveness towards Humans is that being on Earth probably had them scared and confused, due to the fact that they haven't gotten used to their surroundings. It is speculated Eli Vance, one of the survivors of Half-Life, had lost his leg in a bullchicken attack.
I took a trip to xen and was almost killed by an angry bullchicken.