cari istilah yang lo mau, kaya' spook:
 
8.
A younger brother or sister.
dari Stan Jum'at, 10 Oktober 2003
 
9.
(noun)

Reminders your parents had a lot of sex...
Why do I have siblings???

Because... You parents liked sex.
dari TheBubbies101 Rabu, 27 Agustus 2014
 
10.
From the infinitive 'to sible' (pronounced 'sibble'), meaning to perform some form of sexual act with another persons brother or sister (preferably younger for greater novelty value...though not TOO much younger). For clarity in use, the given example would mean that to sible 'her', would be to sleep with 'her' sibling.
'Dude, I would totally sible her...soon as her younger sister's street legal of course.'

'For sure dude! I'd give her the sibling of a lifetime.'
dari I Love Grimbling Minggu, 13 April 2008
 
11.
Someone who came out of the same vagina as you, and can either be a boy or a girl.
my sibling is playing my video games on my Xbox.
dari Ilisten2Metal Kamis, 16 Oktober 2014