Definition of jacksie in English:

jacksie

Line breaks: jack|sie
Pronunciation: /ˈdʒaksi
 
/
(also jacksy)

noun

British informal
A person’s bottom.
More example sentences
  • Two goals in three minutes, gave the game the firework up the jacksy it required, while also killing it off as a realistic contest.
  • Unless they elect the wrong kind of government, in which case they will find American fingers crawling so far up their jacksies that a distinct lump will appear in their throats.
  • You know, I really, really hate getting shot, and had I been in a position to do so (and not writhing on the floor bleeding slightly) I would have told Matty so, before inserting his pistol up his jacksie, sideways.

Origin

late 19th century: diminutive of jack1.

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