(Verb)-The act of gatecrashing your friends house uninvited at a really awkward moment.
I just got totally Hannah'd last night. I was taking the smelliest shit of my life when my friends walked in my house. They had to wait outside whilst I airfreshened the entire bottom floor.
I Hannah'd John last night. I walked in his house expecting to have a couple of drinks and a chat when he walked into the kitchen completely naked after his shower. I'm never Hannah'ing someone again.