What is Siiyb?
1.
an abbreviation for "Stick It In Your Butt"
In context of dialogue:
"Did you let him siiyb?"
"Just for a second. Just to see how it felt."
See
2.
an abbriviation for
"Stick It In Your Butt"
In context:
"Did you let him siiyb?"
"Just once just to see how it feels."
See