Phrase commonly used and originated in an area in Barbados known as "Central" along with other areas.This phrase is used to identify girls who seem...ghetto,bashy,wutless,easyskanky,slutty or like a scabbical(see meaning) etc.
Orlando:boi girls in here aint giving me a break ye acting posh!!
Philip:you right ye...a riff raff wud surley sort we out!!!!
A male or female who has no motivation whatsoever. They do not work, mooch off of people and are totally content in doing so. They would much rather just hang out all day long, and are content with how things are and don't ever plan on making things better, even if it can help them in relationships.
When deciding whether or not to get a job,Jake,the riff raff decided he would much rather just hang out and do nothing for the day.