Top Definition
Having to do with fat; fatty, greasy.
Sebaceously ornated faces belonging to teens could be seen.
by Larstait November 14, 2003
gross, nasty, disgusting
"Oh man, I went to the doctor's today for this rash I got, man it's all scaly and there's all this white and like yellowish pus coming out and- here, look!"

"Dude, stop. That's so sebaceous."
by snackattackmac October 17, 2006
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