deerstalker
Acting like a detective in a learning situation.
I want you to learn in this class; don't be a deerstalker
chimp in a deerstalker
An example of something you ordinarily would really like, but in this particular case don't.
"I love Star Trek, The Animated Series, Next Gen, Deep Space Nine, and even certain aspects of Voyager. But Enterprise was a chimp in a deerstalker."