1 definition by cmatkins
The nonverbal, neutral acknowledgement of, or showing of respect to another by making eye contact, flattening the lips, and raising the eyebrows. This act is most commonly used in passing of coworkers, the elderly, and small children. The facial expression resembles that of a turtle's face.
As Brian walked past his boss in the hallway, he used a turtle face to acknowledge his boss without saying "hello."
by cmatkins July 7, 2009