Two or more people who shares the same sugar daddy.
: Have you heard? Jennifer's sugar daddy is Jonathan.

: Jonathan? He's also my sugar dadd-
: Oh... so y'all's are sugar siblings. Got it.
by jaruldojacouch October 22, 2021
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An older sibling who spends money on their younger siblings without making them pay it back.
My sugar sibling just got a new job and makes eighty-grand a year. I'm going to be spending it like it's mine. They're my sugar sibling.
by Kassy Kas September 9, 2022
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