Top Definition
A phrase created by emergency services personnel who were trying to euthanaise a cat. The cats head was found to be incredibly strong. It is know used to describe anything especially strong. Often used to describe an erection. Now frequently used by TV commentators when calling AFL games.
Hey jonesy did you see that hot chick?
Yes, she got me harder than a cats head
diamond hard on erection
by Pipksi September 16, 2013

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