Top definition
A juice that is produced by an animal that delights in being scratched by it's hooman slave during sexual intercourse.

Very similar to a pre-cum, only cooler.

Consumes much seeds.
Look at this birbjuice coming out when i scratch it.
by cockenschtuff August 03, 2018
Get the mug
Get a Birbjuice mug for your brother-in-law G√ľnter.