I don’t know much about street art. I’m no graffitist (a person who does graffiti), but I do know that to “tag” something is when someone quickly spray paints a surface, or it can indicate how a ...

A question tag is used at the end of a statement to ask someone to agree with us, or to keep a conversation going, or to ask a genuine, real question: It was lovely seeing those buildings, wasn't it?