Top definition
A newfangled euphemism for sex. Derived from the common courtesy of having sex under a pillow fort so that people do not walk in on you.
e.g. -"What are those people doing?"

-"They are probably having sex, but it is nice of them

to make it less awkward by making a pillow fort."
by your real name (fuckdasystem) February 23, 2014
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