look up any word, like thot:
 
1.
To constantly text, and when your not obsess about it. Self-gratification in "playing" with your phone with your thumbs.
1. Mr. O caught Kelsey thumbsturbating in front of him in class during third period.


2. She thumbsturbated all over the place as she texted her friend.
by Ostrowskiness March 10, 2009