http://de.urbandictionary.com/define.php?term=Trifler

Trifler: A Lying, Cheating hoe bag of a woman, only out for one thing; To rip your heart out of your chest, spit on it and shove it back in. They spend most nights prowling bars, looking for free drinks and place to spread their legs. Triflers are soulless creatures, and should not be trusted.