1. Pl of lacky.
2. A group of people that cant think for themselves, and have a Boss that does the thinking for them. Anyone that lacks the inteligence to figure it out for themselves.
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."