The stinging or tingling sensation created by making too many quarter-circles or half-circles on a video game controller's d-pad.
With the release of Ultimate Marvel vs. Capcom 3, I've been getting really bad fighter's thumb lately.
by AxelScar November 23, 2011

The mobile device equivelant of a page turner.
It comes from the flicking motion your thumb makes as you scroll through a post thread or story.
It comes from the flicking motion your thumb makes as you scroll through a post thread or story.
by BeardedBarista August 18, 2017

Kentucky thumb, the act of blowing your firearm up with an old army round and inserting your thumb into the wound to stop the bleeding
by Lemomlimepie6 May 21, 2021

A sore and/or numb sensation between the nuckle and base of the thumb caused by hitting the joystick button of a game controller for hours on end. The ailment became common after playing a classic side-scrolling shooter called, "Contra". Sometimes confused with carpal tunnel syndrome.
by RobertMHoehn March 20, 2010

Birthday thumb. A new form of RSI (repetitive strain injury) which develops in the thumb after 'liking' all the birthday messages you receive on social media birthday thumb
" hey how was your birthday ?
Fine thanks but my thumb aches from liking all the 'happy birthdays' on Facebook . think I've got birthday thumb
Fine thanks but my thumb aches from liking all the 'happy birthdays' on Facebook . think I've got birthday thumb
by Yolo4ever May 18, 2016

by ASChicagoan May 14, 2015

by Craig Mack Andy bitch nasty October 12, 2013
