Translation guide
Cowper's fluid, also known as pre-ejaculate, is a clear, lubricating fluid produced by the bulbourethral glands. In Japanese, it is most commonly referred to by the medical term 尿道球腺液 (にょうどうきゅうせんえき) or the more colloquial カウパー腺液 (カウパーせんえき).
The formal, scientific term for the fluid produced by the bulbourethral glands.
Informal ways to refer to pre-ejaculate in everyday conversation.
Medical terms like 尿道球腺液 are appropriate in clinical or educational settings. Slang terms like 我慢汁 are very informal and should only be used among close friends or in adult content. Using slang in a formal context would be inappropriate.
This is the standard medical term. It directly translates to 'bulbourethral gland fluid'.
Cowper's fluid is a clear liquid secreted before ejaculation.
A common alternative using the English name 'Cowper' in katakana. Widely understood in medical and educational contexts.
Cowper's fluid can sometimes contain sperm.
Literally 'patience juice', this is the most common slang term for pre-ejaculate. It implies the fluid that comes out when one is holding back ejaculation.
When I get excited, pre-cum comes out.
Literally 'running ahead juice', another slang term emphasizing the fluid that appears before ejaculation.
My underwear got wet with pre-cum.
A shortened form of 先走り汁, used in very casual contexts.
There's a lot of pre-cum.