Dirty Irish Milkbone 

When a disgusting Irishman swabs his bellybutton with his finger, then wipes it on an unsuspecting innocent bystanders upper lip.

Jim got a dirty irish milkbone from kirk.

Dirty Irish Milkbone by McLvn September 11, 2014

Dirty Irish Milkbone 

When A Irishman that hasn't bathed in days swirls his finger in his bellybutton, then wipes his finger upon a lip of an unsuspecting innocent bystander.

Jim got a dirty irish milkbone.

Dirty Irish Milkbone by McLvn September 11, 2014

Dirty Irish Milkbone 

Noun (N).

Referring to the index finger of an uncouth Irishman.

"Get your dirty Irish milkbone out of my face man!"

Dirty Irish Milkbone by McLvn September 11, 2014