Board Thread:Legitimate Canon Questions/@comment-25273017-20140903173935/@comment-4091815-20140903175225

The Sheriff knows all about it. He has since they were searching for her in the woods that first night.

Stiles is always correcting Malia because he wants her to sound more human - "Pizza" is a more human response than "Deer."

Also, if a human wanted to say they love to eat deer, they would likely say "venison" since that's what we call deer meat.