sleazy (comparative sleazier, superlative sleaziest)
1. Marked by low quality; inferior; inadequate.
2. Dishonorable; base; vulgar; raunchy
The term "sleazy" is often misused and stretched to mean things that it just plain doesn't mean.
(See above.) If you wanted to call someone "dirty" you'd call them "dirty", If you wanted to call them "creepy", you'd call them "creepy". Fast: fast; nasty: nasty; forward: forward, etc.
Sleazy is a vague and dishonorable snap-judement used by women with inferior intellects and inadequate vocabularies, and thus the typical user of the term "sleazy" is actually better defined as "sleazy" than the intended target.