Ass callouses

[Magaret]

Callouses formed on the [buttcheeks] of a person usually as a result of sitting on a hard chair for an extended period of time. Common situations include your math review class after school which seems to [drag on] into [oblivion], sitting on a folding metal chair at home while on your computer for several hours a day, or those long dinner parties with hard wooden chairs that you only go to because your wife begged you to.