Creating a cold room for no apparent reason in the winter. Strategies used include but are not limited to; opening the window in the winter months, using a fan, and removing clothing in order to feel the cold more. The intention is to create a reverse sauna.
When you turn your window a/c unit on and shut the windows and the door so that one segment of your apartment is nice and frosty, while the rest is a million degrees and muggy because that’s how hot it is outside. Then you never leave that room.
It was so hot yesterday that I couldn't even leave my apartment - I just coldboxed my bedroom instead.