Definitionanal intercourse where the passive partner lies on his belly.
Synonyms: backswing; sunnyside up.
3. A popular toast for emptying one's glass.
(1) Lewis Nkosi. The Rhythm of Violence (1964): ' I say bottom's up both to women and to glasses! '
(2) Lauren Goodhue (Kelly Le Brock) toasting Ryan Harrison (Leslie Nielsen) in Wrongfully Accused (1998): ' Bottoms up! I know mine will be. '
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bottle of scent
bottom in front
bottom up engineering
botuliform genital pendant of the male