1 definition by Kristeenieweenie

Donahue is an Irish last name, which usually means that they are someone is in a somewhat large family where usually a member has anywhere from 1-11 siblings and somewhere between 12-36 first cousins and 56 second cousins. Donahues usually reside in the United States with most of it's members in the mid-west and some stray ones in places like California and Florida, or in Ireland.
Person 1: Yeah, i heard that she has 56 second cousins.
Person 2: She must be a Donahue.
by Kristeenieweenie November 25, 2006
Get the donahue mug.