四種邪命食之一。謂比丘種植田園和合湯藥等，以求衣食也。對於仰口食而語。見智度論三，三藏法數十九。
one of the 四邪命食 four heterodox means of living, i.e. for a monk to earn his livelihood by bending down to cultivate the land, collect herbs, etc.; opposite of 仰口食, i.e. making a heterodox living by looking up, as in astrology, fortune-telling, etc. 智度論 3.
一下口食 四邪命食之一。下口，巴利語 adhomukha，本指臉部低下之意，故「下口食」引申為出家人不托鉢乞食而自耕作營生。大智度論卷三（大二五‧七九下）：「有出家人合藥、種穀、植樹等不淨活命者，是名下口食。」（參閱「四食」2247）p941
只在臉朝下時吃東西。