deerstalker 

Acting like a detective in a learning situation.

I want you to learn in this class; don't be a deerstalker

deerstalker by olivira June 6, 2018

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."

chimp in a deerstalker by KevOx December 18, 2009