Top Definition
An awe-inspiring spectacle of the nipple. Widely pursued but infrequently witnessed.
"Did you see those girls last night?"
"Oh man! That was a total areola borealis!"
by Andrew Erickson April 07, 2006
An accidental or unintentional nip-slip. The occurrence of which can not be reasonably predicted. Appearances are considered both random and infrequent.
Her Areola Borealis caught our eye as she walked by confused by our seemingly impolite and unwarranted gazes.
by Spordo January 22, 2016

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