when you're holding someone's hand, you rub your thumb against their hand. it feels nice and gives a them a comforting feeling.
Friend: "Did you do the thumb thing???"
Other friend: "Yeah, I did, I think they really liked it. They must've fallen in love with me because of it!"
Other friend: "Yeah, I did, I think they really liked it. They must've fallen in love with me because of it!"
by ValentineeeeeeG. April 07, 2021
by ValentineeeeeeG. June 12, 2019
Being gay for Billie Eilish. It's used by girls who are fans of Billie, some of them are gay but almost all of them are gay for Billie.
Billie stan: "dude, i'm not gay but i'd do some dirty dirty things to Billie Eilish"
Friend: "bro, you're definitely bilsexual!!"
Friend: "bro, you're definitely bilsexual!!"
by ValentineeeeeeG. December 28, 2019