degrading name for the isp of comcast
cumcast has way to much lag
by tom December 6, 2003
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When your dick is wet and slimy after sex but you dont wash it right away cus youre lazy so it dries and turns into a cumcast
i should wash my dik in the next 5mins or i'll get a cumcast
by glockdaddy August 5, 2017
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That chick is cumcastic.

Lauren is not hot enough to be cumcastic.
by p8q47328q9o March 21, 2009
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used to describe a girl with nice lips, in most cases DSL as the word cumcastic resembles comcast.
that girl has some DSL...chea her lips are cumcastic
by Cack! October 5, 2006
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