Can also be used as a term to describe an ugly woman.
"Look at the state of that jaikie!"
"What a jaikie bastard"
When insulting a woman:
"You're jaikie as fuck! Scoot, ya fuckin ugly nugget afore ah slap ye wan"
Due to their addled, shifty nature and incoherent mode of speech, the only two known methods of differentiating between sober and inebriated jaikies are a) a measuring the diameter of the pupil and b) measuring strength of the piss smell emanating from the individual's filthy shell-suit bottoms.
The term jaikie derives from Frosty Jacks, an extremely cheap white-cider-cum-paintstripper sold in local off-licenses, and popular among less salubrious individuals as a more inexpensive alternative to the ubiquitous Buckfast.
Can also be used as an adjective.
Human being: "You're no oil painting yourself, you fucking jaikie bitch! I'd rather put my willy in the hand of Dr No than in your jaikie, fag-stained claws. Now, jog on."