Skip to main content
Search Urban Dictionary
Back
Start typing to search.
Searching
...
Dictionary
Store
Blog
World
Help
Chat
Words of the Day
Browse
Add a Definition
User Settings
Definitions by cracker47
BYOSO
Share definition
Flag
Bring
your own
strap on
The party
is BYOSO.
BYOSO
by
cracker47
January 10, 2026
Get the
BYOSO
mug.
