Globules or strands of stray cum which might have travelled further then you thought & thus don't get cleaned up, which once dry look it / resemble a slug!
Ken "I had a good wank the other day in my mums room, I thought I'd cleaned all the cum entrails up but a few cum slugs had formed on the wall which I hadn't noticed!!"

Frank "what happened, did you mum find them?"

Ken "yeah & it wasn't the first time she had found my cum slugs, so I was in deep trouble!!"
by Lord_of_ Words October 21, 2010
10 Words related to Cumslug
A spooge-filled condom, usually haphazardly tossed upon the floor.
Hey did you remember to uncuff the clow-GOD DAMN IT I'VE STEPPED ON A CUMSLUG.
by ZeeMox August 09, 2010
Noun, a thick white glob of semen that resembles a slug.
I blasted her with a cum slug in the face and marveled at how it appeared to crawl toward her chin.
by tounginasscheek June 12, 2013
The residue dripping out after having anal sex and letting your partner ejaculate into your rectal passage
Max: Mmmmm, I've got some drippage! Must be a cumslug!
by Team dbag August 14, 2008
can be used as both a positive or negative phrase...
Positive: 'Wow...check out that piece of ass, shes a real cumslug'
Negative: 'I can't believe you shagged that greasey minger you cumslug!!!'

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