You fart near someone you're about to take a selfie with, and take the picture just as they indulge in your delicious aroma.

When you eat dirt for the first time and leave your family to build a shack in the woods

To fart and then waft it towards your own face.

To discretely sniff ones underarms for stank before venturing out in to public areas as to not offend other with fowl body odor.

Pictures taken of oneself while pooping, or peeing (girl), usually showing only the legs with pants down or face with just upper body . Often uploaded to social media such as Facebook, Twitter, Instagram, and/or sent to friends via Whatsapp, Snapchat, iMessage, Wechat, BBM, etc.

The act of smelling ones own arm pits to check for body odor.

To take a selfie while shitting on a toilet. Usually used to show off how nice of a place you frequent to empty your bowels.