Explain your favourite folk story like you're talking to a person who just bought you drink at the bar
Did you know Thor once wore a wedding dress? Its true! And Loki went along with it!
There was this giant called Prymr that desired the goddess Freyja and wanted to marry her. Prymr stole Mjolnir from Thor and said they would give it back in exchange for Freyja's hand in marriage. Freyja replied "fuck no! Find a different way to get it back!"
Thor decided to go undercover and pretend to be Freyja in order to get his Mjolnir back. Loki heard about Thor's plan and thought to himself, "oh I've got to see this trainwreak", and disguised himself as a handmaiden. Thor put on a wedding dress and a veil to hide his face and beard. He agrees to marry Prymr. The giant, thinking Thor is Freyja, agrees.
During the wedding, Thor eats an entire ox, a bunch of salmon, and multiple barrels of mead. Prymr questions this behavior because that is not very lady-like. Loki covers for Thor saying, "Freyja has just been so excited about the wedding that she hasn't eaten in a week." Prymr believes him.
While sealing the deal, the giant places Mjolnir on Thor's lap to sanctify the marriage. Thor picks up Mjolnir and absolutely nails Prymr with it, killing him. Thor proceeds to destroy the other giants as well before leaving with Mjolnir in hand. Loki laughs his ass off the entire time.