The act of defecating on a laptop keyboard, then closing the laptop to mold the feces into the shape of a Belgian Waffle. The laptop is then left closed until someone (preferably the owner) opens the laptop to discover the waffle. This is typically performed as a final act of defiance when one's employment is terminated.
It is also simply known as a "Belgian" in corporate culture.
After Reginold was notified he would be fired for stealing office supplies, he left a Belgian Waffle on his superior's Dell waiting for him overnight.