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1.
Fictional creature found in the game Half-Life.

Two legged amphibian with either five or six tentacles located around the mouth on the front of its body, and a tail to counterbalance. The bullsquid is an amphibian with a gold color and a spotted pattern on its back. The tentacles are stained with blood.

Bullsquid are commonly found in Xen, and enjoy heavy radiation and moist areas. They like to eat something called a headcrab but will eat anything available.

Their large eyes on the sides of their body aren't very useful, but their scent is superb and they may have more methods to track which we have not picked up yet. They've been seen searching in the mud of shallow water, so they may have something called the ampullae of Lorenzini that is commonly found on sharks to detect magnetic fields of creatures in the sand. Bullsquid are highly territorial and attack any equal-sized or smaller interlopers to their territory, often including any other bullsquids.

A Bullsquid will bite, spin and whip you with their tail, or spit a lightweight acid ball over long distances from their mouth. Bullsquid do not have seperate sexes, and their reproductive abilities have not been displayed.
The quick foxy bullsquid jumped over the lazy headcrabbed guy.
by Tiki Man January 10, 2004
 
2.
See bullsquid.
The quick foxy bullsquid jumped over the lazy headcrabbed guy.
by Tiki Man September 09, 2003
 
3.
Another name for Bullchicken. 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.
Bullsquids are easily owned with a shotgun.
by OmegaXMK2 August 15, 2007
 
4.
a rare substitute for the word "bullshit."
One of the Wachovski brothers is getting a sex change? That's a load of bullsquid.
by mortimer maxmillian May 19, 2004