It's actually the spot between your eyebrows where you would have a horn, were you a unicorn
. Humorous in context because of its suggestive nature, even though its root meaning is quite innocent.
Person 1: I'm actually not that hot in my unicorn area.
Person 2: WTF?!
She was sweating profusely from her unicorn area because it was 100 degrees out.
Die Mails werden von email@example.com versendet. Wir versenden keine Spammails.