1 definition by The Capital-ᙠ
A rainbow that occurs very rarely at night when it rains on a full moon. This is rare because the moon is not as bright as the sun.
-Dude were you looking outside last night.
-No why.
-There was a sick ass nocturnal rainbow, it was really faint tho.
-No why.
-There was a sick ass nocturnal rainbow, it was really faint tho.
by The Capital-ᙠ March 10, 2016