A certain lockjaw of the thumb, resulting from playing too aggressively during button mashing video games. Most often associated with heated matches of Mario Party.
Dude, I so could have won that minigame had I not caught the trigger mortis!
by thiscouldcureit October 22, 2011
A spasm of regret, often originating in the index finger, immediately after hastily sending an email or a text message that may, on reflection, be inappropriate.
Why oh why did I accept his friend request? Now my hand is locked in a shameful rictus of trigger mortis.
by Jabier February 15, 2011

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