Top Definition
The glob of cum that tends to land on the top of your index finger while ejaculating during masturbation.
Dude, i had the biggest cum ring on my finger today after i blew my load jacking off to midget porn
作者 KrazyKU 2008年10月18日
1 more definition
When you ejaculate and a stream of cum flows down all four of your fingers while your hand is on your dick. Therefore giving off the appearance of of having rings of cum.
"Man I ejaculated so hard I got cum rings!"
作者 Technomancer<3 2015年5月31日

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