Fruncle

Adult friend of your family that you've come to thing of as an uncle.

That's my fruncle. He isn't really my uncle but he's been a friend of the family my whole life.

by Serialseb June 12, 2007

Fruncle

An adult male who acts like part of the family to is friends' children, and usually the most entertaining adult at any get-together. Derived from friend+uncle

Go play ball with Fruncle Matt. Mommy's getting her drink on.

by LexiCodger December 17, 2011

Fruncle

A friend of the family that has taken on the role of the uncle.

Yo you see Matty G. he's my daughter's Fruncle .

by X-Ray87 May 24, 2016

Fruncle

Your father and uncle

I'm going on a date with fruncle

by Step Fruncle ben April 19, 2019

Step Fruncle

Your uncle and your step father

I going to the store with your step fruncle ben.

by Step Fruncle ben April 19, 2019