The opposite of "Lylas" which means Love Ya Like A Sister, "Hylas" mean Hate Ya Like A Sister.
It's when your friend says or does something bitchy you can say "HYLAS" cause you still love her like sisters do, but hate her at the moment.
Also wonderful to say back to a "LYLAS" that is sarcastic.
Pronounced: HI-LA-S
Lydia: Hey so might have put that picture up that you looked shwasted in....lylas!
Catherine: Hylas...
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