Main Entry: ²thumb

Function: verb

Date: circa 1647

transitive verb

1 a : to leaf through (pages) with the thumb : turn b : to soil or wear by or as if by repeated thumbing <a badly thumbed book>
2 : to request or obtain (a ride) in a passing automobile by signaling with the thumbintransitive verb 1 : to turn over pages <thumb through a book>
2 : to travel by thumbing rides : hitchhike <thumbed across the country>

— thumb one's nose 1 : to place the thumb at one's nose and extend the fingers as a gesture of scorn or defiance
2 : to express disdain or defiance <thumb their nose at opulence — Sales Management>