Supplanter or God will increase
Jep is primarily used as a diminutive of Jasper, Jeffrey, or Jephthah. In the context of Jephthah, it stems from Hebrew meaning 'whom God sets free', while as a short form of Joseph, it relates to 'God will increase'. It has gained independent usage in the American South as a punchy, informal nickname-name.
Less common today
Jep isn't in the latest US Top 1000. It last peaked at #4,879 in 2014.
US births per 5-year period, 1990βpresent (SSA data).
Reality television star known for Duck Dynasty
Industrialist and a founder of Western Union