n.
Function: transitive verb
Date: circa 1647
1 a : to leaf through (pages) with the thumb : TURN b : to soil or wear by or as if by repeated thumbing <a badly thumb ed book>
2 : to request or obtain (a ride) in a passing automobile by signaling with the thumb
intransitive verb
1 : to turn over pages < thumb through a book>
2 : to travel by thumbing rides : HITCHHIKE < thumb ed 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 >