Other forms: pinkies
The pinkie is the smallest finger of the hand. Break a pinkie, a pinkie ring, pinkie promise.
It is informal, and commonest in Scotland and America; elsewhere people say little finger. A pinkie promise, hooking the fingers together, is a children's oath. It carries more of the hand's grip strength than its size suggests.
1nounpinkieThe smallest finger of the hand.
“She wore a small silver ring on her pinkie.”
pinkie is a finger.
Dutch pinkje means little finger. The word reached English through Scotland and through New York.
Dutch
pinkje
English, today
pinkie
From Dutch pinkje literally “little finger”, which in the Holland dialects takes the form pinkie.
Etymology from Wiktionary, CC BY-SA