skanky? manky?? good heavens... I'm going to quote "A Dictionary of Slang (slang and colloquialisms of the UK)" for you:
>>skanky Adj. Dirty, unnattractive, ugly, smelly <<
>>manky Adj. Scruffy, dirty, distasteful, disgusting. <<

in usage:
she's a skanky, manky ol' whoor...

"beautiful, expressive words" indeed.