Your best friend. His beautiful, shiny exterior is complemented by the drawing of a heart, symbolizing your love for him.
I invited your best friend Companion Cube, but he couldn't come, because you murdered him.

If Companion Cube should speak to you, don't acknowledge his suggestions.

The cake is a lie.
by Steven Willmy October 31, 2007
The eminent center would like to remind you that the companion cube will not threaten to stab you and cannot speak. If you do hear the companion cube speak, ignore what it says as it would sooner destroy itself than be a burden to you.
I fucker the companion cube in the ass
by The Hater of haters December 04, 2014

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