What is "Hey Stranger...", you ask. It is when you receive, or send, a message on facebook from someone you have hooked up with or had a relationship with in the past or wanted to but didn't have the opportunity. The opening line of the "hey stranger..." is the socially acceptable way to say, it's been a long time but I am still interested in hooking up if you are.
Have you ever been hey strangered? Have you ever been happy birthday strangered? Change your relationship status to single then get a hey stranger...?
Hey stranger is a phrase as well as a verb...as in "I was hey strangered by my ex-boyfriend from high school"
Hey stranger...how have you been. Heard you are living in Seattle...I am going to be there next month for work, maybe we can meet up.
What you say to a friend after you haven't seen them in a long time...so long that it almost feels like they are a stranger. Usually used as an opening in a text, or facebook message.
Hey stranger, I remember all the fun we used to have, whats good tho?