(North Wisconsin and Yooper) Alternative form of James, usually a diminutive, but is also occasionally a given name. An odd quality of this name is that it can often take a definite article the (da in yooper dialects,) unlike most english names, I.E. Instead of "Go Tell Jimmer to mow the lawn," "Go Tell the (da) Jimmer to mow the lawn."
Origin of jimmer
Diminutive of James