noun, noun or participle which takes 'suru'
walking while eating; eating on the go
Refers to the act of eating while walking, often considered bad manners in Japan.
歩き食いは行儀が悪いとされている。
Eating while walking is considered bad manners.
駅前で歩き食いをしている人を見
I saw someone eating on the go in front of the station.