by hustlenomics June 21, 2006
Get the jacksmug. by jackmandigger May 31, 2007
Get the jacksmug. slang for converse jack purcell sneakers, similar to the shortening of chuck taylor to chucks 
jack purcell was a badminton player in the early 20th century.
jack purcell was a badminton player in the early 20th century.
by uplate May 13, 2005
Get the jacksmug. by Sista from anotha Mista August 22, 2005
Get the jacksmug. Usually used to buy a certain amount of weed worth £5 but has now been morphed to just plainly mean £5 in London Street language (jafaican)
"Oi rob, have you got enough for the cinema?"
"Nah Fam, I only got a jacks, buck (lend) me a nugget (pound)"
"Nah Fam, I only got a jacks, buck (lend) me a nugget (pound)"
by Fiverdotman April 22, 2007
Get the jacksmug. A derogatory term which people from Cardiff use to describe people from Swansea, in South Wales.  Etymology:  stems from "Swansea Jack" a dog who assited in the saving of several dozens of persons from various drowning situations by barking loudly from the beach/docks and thus drawing the attention of passers-by who were able to really help.
Cardiff supporter: "Fuck me, I can't believe those soddin' Jacks are back in the Championship!" 
Graffitti in toilet of The Woodville pub in Cardiff "Kill all Jacks!"
Graffitti in toilet of The Woodville pub in Cardiff "Kill all Jacks!"
by Mr Snail April 17, 2008
Get the jacksmug.