curl
curl the mo succeed brilliantly; win. Australian informal
☞ The image is of a man triumphantly curling the ends of his moustache (mo is short for moustache).
make someone's hair curl shock or horrify someone. informal
☞ This expression may have developed in the mid 20th century as a dramatic or humorous variation of make someone's hair stand on end (seehair).
make someone's toes curl: seetoe.