What is Jap's Eye?
1.
British slang <n> (Offensive)
The only externally visible part of the urethra on a male where semen and urine is secreted from the body.
Known as a 'Jap's eye' due to the similarity between the shape of the stereotypical Japanese eye and that the opening on the penis is much like a slit.
Although the phrase is not used in a directly racist manner, people of Far Eastern origin may take offence to the use of the term.
"Jeremy inserted a drill bit into his Jap's eye and proceeded to utterly maim himself."
2.
the slit of the penis that resembles an asian mans eye. Out of this slit urine and semen is secreted.
I have a well bad rash on my jap's eye
3.
the slit that blokes piss and cum out of on the end of their cock
I'm gonna shove a red hot needle down ya jap's eye
4.
Right there on the top of your dick. Out of it comes come and piss.
Aimed his jap's eye right at her throat and gave her a pearl necklace.