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1.
Bangs that have not seen the hot stream of a shower in at least 48 hours.
"Look at my grease bangs, I'm bringing sexy back and I'm hunched over on two chairs"
by CSSJ April 09, 2007
 
2.
when one skips a few days of showering and their hair becomes greasy. if they have side bangs they will split up in chunks of shiny hair instead of having a all the hair as one
Uhg.. these grease bangs are pissing me off!
by llllllllaaaaaaaaaaaaa February 13, 2010