TWS (투어스) Dohoon's 'Being Myself'

In the Korean comments

One comment reads, in translation, “He really looks like someone who would appear in a boys’ manga.” Another points viewers to 0:32, saying DOHOON seems to be pulling his suitcase upside down.

What the words mean

똥강아지 (ttonggangaji, literally “poop puppy”) is not an insult here. In “our 똥강아지 (ttonggangaji, lovable little rascal),” it is a playful, affectionate nickname.