Comparative form of greasy: more greasy(adjective)
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Use "greasier" in a sentence
"Every year, the fairs across this great land compete with each other to invent bigger, badder, greasier fair food."
"Its hard to find a greasier, low life, self serving politician in the whole country than Mitt Romney."
"It's hard to say which will be the best for you – some are greasier, some are perfumed, some are anti-wrinkle and things like that, but used in public they all basically make people think you've got your life really quite sorted."