Wiktionary
pinky finger
n. The smallest finger on a hand.
Usage examples of "pinky finger".
When Kenny was ten he chopped off the end of his pinky finger with his father's ax.
He measured the depth with his pinky finger, just as Quinlan had done.
Only now did Keller notice that her hands were missing the pinky finger and were almost as slim as her wrists, making her arms seem long and spearlike.
She coiled a lock of hair around a pinky finger, eyelashes still batting.