Small Dick Syndrome. When someone has a small dick and has to over compensate by being a huge dick in personality.
Oh no, he has SDS.
by MellowJello20 November 28, 2020

by _.lileahh November 21, 2021

Small Dick Sender. Someone who sends a limp/flaccid Dick pic. Usually showing no shaft, but just a little turtle head
by Roosterwiththetunacan May 31, 2021

by IloveSD March 20, 2022

In reference to, the beautiful, Savanah Boolin.
Compliment- If a female is “SD-Boolin” then she bears striking resemblance to one; Savanah Boolin, a very beautiful individual.
Compliment- If a female is “SD-Boolin” then she bears striking resemblance to one; Savanah Boolin, a very beautiful individual.
by Oh 👌 November 26, 2019

SD is a real nigga with a big dick Who listens to carti and worships him he also has the best hair he gets girls. He is a black supremacist he has good hair. Hes chill plus he has an humongous cock
SD a real nigga
by anonymous November 22, 2021
