JILL
Etymology
Proper noun
Jill
A female given name from Latin.
Clipping of Jillian.
Generic use for any female (as Sheila in Australian English), especially paired (since the 15th c, compare Ienken and Iulyan) with the male Jack.
Noun
Jill (plural Jills)
A young woman; a sweetheart; like the variant spelling Gill it was also associated with various assertive uses of the term flirt, as in flirtgigg (used by William Shakespeare for a 'woman of light or loose behavior').
A jillstrap: the female counterpart to a jockstrap.
Etymology 1
Verb
jill (third-person singular simple present jills, present participle jilling, simple past and past participle jilled)
(uncommon, coarse, slang, of a female) To masturbate.
Synonyms
• See also masturbate
Etymology 2
Noun
jill (plural jills)
A female ferret.
Coordinate term: hob (sex)
Etymology 3
Noun
jill (plural jills)
Misspelling of gill.
Source: Wiktionary
Jill, n. Etym: [See Gill sweetheart.]
Definition: A young woman; a sweetheart. See Gill. Beau. & Fl.
Source: Webster’s Unabridged Dictionary 1913 Edition