I. mooning noun
( -s )
Etymology: from gerund of moon (II)
1. : aimless reverie or vacuous contemplation
2.
[ moon (I) + -ing ]
: an occurrence of small translucent spots in the paste of porcelains (as in Chelsea china of about 1758)
II. moon·ing ˈmüniŋ noun
( -s )
Etymology: from gerund of moon , verb (herein)
: the practice of exposing one's buttocks (as through the window of a moving vehicle) as a prank