Cum chin
From Voyeurweb's Wiki about Sex
A cum chin is a female chin that has been ejaculaled on. A cum chin does not require that there is any jizz is inside or on her mouth, which would be a cum mouth. A cum chin can be easily identified by dripping cum from her chin.
A cum chin is quite often the aftermath of giving a blowjob or or even more extreme after receiving a facefuck.
