A significant lack of substance within a mean, arrogant, and mad context.
The middle aged daughter took her aging Mother for lunch. Her complete lackness of good behavior and interest clearly illustrated their awful relationship history. She just didn't care about her Mother as she displayed such apparent lackness of love.
The mental disease contracted by not getting any poon over a long period of time. Symptoms include increased porn viewing and more frequent masturbation (yes, even more than usual).
Known Cures: Prostitutes, Single's Bars and Frat Parties.
After chokin' the chicken for the 5th time in one day, Ken realized he had contracted Lackanookieitis and consulted the local Prostitute for "help".
A hair tie or hair elastic. The term 'hair lacky' is an amalgamation of the words 'hair tie' and 'lacky band'. Lacky band being a shortened version of elastic band or rubber band.
"Hey, do you have a spare hair lacky? I've got P.E. next and I don't want my hair getting all messy."
"Nah, sorry mate. I've got a lacky band but their super painful to use instead of a hair lacky."