Fooderus
Similar to the Uterus for an actual baby, the Fooderus is for a food baby. The fooderus is only active or felt when in the presence of a foodbaby. This is caused by eating too much food, causing the eater to feel pregnant because they have eaten too much food. This is followed by a feeling of fullness or denseness.
" Ugh. I'm so full, I can feel my fooderus expanding..."