Turns out Duck Face is genetic.
In This Picture: Photo of extreme duck face
I'll Forgive The Duck Face
The real duck face
Duck Face Bomb
In this picture: Lara Marsden doing the duck face
In This Picture: Photo of girls with duck face
Guido twins make duck face a the camera
A duck face memorialized in the form of a tattoo
Two girls kiss a bottle making double duck faces
A blonde with big jugs making a duck face
A girl making duck face talking to Donald Duck
Rihanna in a bikini in Barbados
This is double irony as the tattoo was probably meant to be ironic to begin...
Or goose face, or whatever.