Top Definition
A term used to describe someone of extreme ugliness, mental retardation, foolishness, clumsyness or randomness. It is also commonly used in a derogatory manor to demean and degrade the scum of the earth who choose to do ancient history

Sam: Did you go to john's last night
Dave: Nah, fuck that kid off, he's a hectic but slug
by Joey joe joe shabadoo Jr. June 12, 2008
5 Words related to But Slug

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