1 definition by Kittennffc

The sticky, yellowy, substance with a similar consistancy to that of a crumbly cheese that collects behind the foreskin of a man if he is dirty and doesn't wash properly.
"I've got some smeg under my foreskin"

"Eww, that boy had a right load of smeg on his bell"
by Kittennffc June 28, 2005
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