A pair of lovers; a couple; spouses. Jacks & Jills , people (of both sexes) collectively.
QUOTE: Edward Pink (Eddie Cantor) singing with Joyce Vance (Ethel Merman) in Strike Me Pink (1936): 'I'll be Jack if you'll be Jill and wind up with me.'
jack and jill rate this definition:
(Noun)
a pre-wedding party for both men and women attending a wedding
Usage: Maids of honor can wind up hosting bridal showers, bachelorette parties and even the co-ed Jack and Jill party -- often footing the bill entirely.
Jack and Jill rate this definition:
(Adult / Slang)
(Verb)
Mutual masturbation with men and women present. Generally participants in a jack and jill party, masturbate themselves while watching others do the same.