Young Swedish Blonde Girl On The Sand And Mud Bank With A Driftwood And Remains Of Trees

Outside of hunger, mud and dirt can be consumed accidentally during sports and other outdoor activities. This has led to dysphemisms for poor-tasting food such as "tastes like dirt", based on the experience of getting mud, dirt, etc. in one's teeth.
There also exist children's recipes for "mud", which is generally a chocolate or cornstarch-based sludge used more for visual appeal than actual taste. Never does this confectionery mud actually contain real mud.