tìm từ bất kỳ, như là bukkake:
A younger brother or sister.
viết bởi Stan 10 Tháng mười, 2003

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

Because... You parents liked sex.
viết bởi TheBubbies101 27 Tháng tám, 2014
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.'
viết bởi I Love Grimbling 13 Tháng tư, 2008
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.
viết bởi Ilisten2Metal 16 Tháng mười, 2014