Primarily a relatively large unattractive female who tends to be on the more "personal fiendly" scale of personality. A skizzlebutt usually has carried a well earned degrating reputation from many different breeding grounds. They may have multiple partners and others may have multiple at the same time. A common characteristic of these creatures is an insationable desire for rear entry pleasure.
I cant believe you allowed that dirty SKIZZLEBUTT into your bedroom. You should have sent her a one way ticket to skizzle-town.