get off at redfern

As above, however the origin of this saying is easy to trace. On the train line to the city in sydney, one of the last stops before the city is at a suburb called redfern. Thus, when you get off at redfern, you're exiting the train before getting to the main part, the city.

Has the same meaning as Abdominal Snowman

To withdraw, immediately before ejaculation. Like similar expressions, this image is based on Redfern's being the last train station before arriving at Sydney Central Station, in New South Wales.