What is Bumcum?
1.
BumCum is after your partner has ejaculated in your ass, and then Cum starts dripping outa his ass hole.
eewww, omg my bf fucked my ass last night and then started drinkin my bumcum.
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2.
bumcum is actually the slick substance that you feel in your bum after you have done a lot of working on on a hot summer day.
I had mad bumcum the other day when I was running in gym.
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