Y.C.S.S. (Younger Cuter Sister/Sibling Syndrome)

When you have a younger sister/sibling that is better looking than you
Stacie is okay but have you seen her little sister Jessica? Stacie totally suffers from Y.C.S.S. (younger cuter sister/sibling syndrome)
by Discobeck August 28, 2018
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Younger Sibling Syndrome

When a younger sibling constantly feels inferior to their older sibling.
there always compared to their sibling, it’s a clear case of Younger Sibling Syndrome
by Imhotandurnot November 15, 2022
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