Handie Down
When your girlfriend's older sister gives u a hand job.
..."I was at Julie's last night and got a handie down from Rebecca..."
Handy-down
When you get a handjob from someone that your significant other gave a handjob to first.
Robert learned a lot from Jane’s handjob that when Robert gave me a handy-down he was an expert.
handy-down
Something handed down from one person to another, often called a hand-me-down.
Brian received a handy-down from his older brother.