Banner joke ?

Pls don’t call me stupid but I kinda don’t get the Look at banner joke ? (English isn’t my native language) - is it because gob acts like the banners a person & leaving out the article? I get (the) army jokes because buster makes it sound like school but did I miss something about the banner joke or am I thinking too complicated 🤔 also why would they write the things on the banners like that ( family love Michael, michael love marry ) is it again because they’re grammatically incorrect ? Someone pls tell me I hope I don’t come across stupid 😭