Top Definition
Any room used to rub one out, or masturbate.

For example, a bedroom with a sports illustrated swimsuit edition, is a fine room to convert to a jackatorium, temporarily.
Or you could convert your moms living room, to a jackatorium while watching Friends on TV.
Or, say you are researching anatomy on the internet, on your dads computer, well then, his office just became a jackatorium, didn't it?
by Shwagg March 17, 2007

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