1. (N) The "Blue Eagle" is a rather hideous facial expression that is used to express disgust, disdain, disappointment or any other general feeling of repudiation or angst. This facial expression was popularized by the Muppet Show character Sam, who is by no coincidence, a blue eagle. Extremely versatile and easy to use in just about any situation, the Blue Eagle is undoubtedly a look you do not want to receive. Often, those who see/receive the Blue Eagle also experience feelings of guilt and chastisement.
2. (V) The act of using this facial expression as a means of expressing disapproval for one's actions or behavior. Often used to describe a situation in which the blue eagle was used and for what purpose.
1. My friend Phil has a hideous blue eagle, but, that should be expected; he kinda invented it.
2. I blue eagled her after I realized how MASSIVE her vagina was!