Aside from the obvious implications of adding a mouth, i.e., eating, swallowing, 喰 appears to be an alternate form of 餐, food being consumed using utensils.
"In more recent usages 喰 explicitly represents くう and くらう"
"喰 has already lost its reason for existence, but it's still in use, especially when you want more 'bite and booze' feeling or violent 'consuming, devouring' implications." Source: https://japanese.stackexchange... (top answer)
