To call someone jacksis, in other words: When someone gets fucked, or something unfortunate happens to them (like falling down the stairs and dislocating their arm), they got called jacksis.
by Jacksis December 31, 2020

by sickgtotheshizzleg December 07, 2005

British slang for a bottom,anus,poo hole or other terminology for the passage that excrement leaves the body.
by Jacksieman July 01, 2022

You jacksy bastard!
by Clinton June 15, 2004

A Jacksie is a person who can manoeuvre their penis down between their legs, curling it around and inserting it into their own anus. Essentially it's the act of fucking yourself
"oh man, did you see Phil put his dick in his own ass the other day?!"
"Yeh, he's such a dirty Jacksie"
"Yeh, he's such a dirty Jacksie"
by Julesyyyyy June 04, 2018

by Gnub Jist May 21, 2016

by Gnub Jist September 09, 2016
