To recycle a past sexual encounters. (To hook up with someone you used to date, or had previously already hooked up with) Referring to blue recycling bins.

Used by people who fall into old patters, typically with low self esteem.
As best seen on the Today Show to Katie Couric.

"So I blue binned him"
by Benjamiming June 21, 2005
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Recycling the same old trash.

From the management fad for "blue-sky thinking", and the blue bins used for recycling household detritus.
Manager: We've got to get our ducks in a row on this new client project.
Worker: Let's do some blue-bin thinking, and really get the ideas flowing.
Manager: Don't you mean blue-sky thinking?
Worker: No, we should just re-use the same old crap we've always used.
by Flakey April 12, 2010
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Blue Bin
I called one of my exbfs (from a year or two ago) to come over last night. We had hot, sad and lonely angry sex. Next morning he was back in the blue bin and I blocked his number for good. (Canadian context applied)
by Billy-Soo September 17, 2019
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