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The second or extra bed in a hotel room or guest bedroom used specifically for having sex, while the first bed is used only for sleeping.
There was 2 beds in our room but we only needed one, so we used the other as a cum-bed.

It's nice to have a cum-bed because you don't have to marinade in your own juices when you sleep.
by .......get it? January 02, 2017
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The bed you masterbate into when staying solo in a double bed hotel room. The bed itself is used as a cum rag, and no clean up is necessary.
"Make sure to use the less comfortable of the two beds as your cumbed, because afterall, you won't be in it for too long."
by kangytea January 02, 2017
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