I'm not so knowledgable about the subject, but since nobody else is replying.
In Malaysia there are boh sia girls, whom you could pick up and screw for the price of a McDonald's meal. If I'm not mistaken, this is a 90s phenomenon, and the girls are mostly underage.
In Singapore there is the sarong party girl, or local malay gold digging lass who only likes white men because they are "richer" and "classier".
In polite society, a boh sia and spg is in the same class of deragatory words like *****, slut, and *****, to name a few examples.
Thus ends a brief introduction.
You were asking about easy lays right?