Definition: A code-mixing phrase that Hong Kongers use to refer to having low intelligence or being stupid. Also used as '低B' sometimes.Usage: E.g. 唔好咁low b係到周圍大叫啦！
E.g. 低B仔，你係咪仲未get要做咩呀？Reference: http://www.cmi.hku.hk/Ref/Article/article02/01.html
Definition: A code-mixing term used by native Hong Kongers to refer to someone who is silly and stupid. ie. An imbecile.Usage: E.g. 唔好成日咁KAI喺到亂咁嗌啦！你係低能定係白痴架？！
E.g. Don't be so kai yelling all the time! Are you low b or an idiot?
