when the tip of your thumb becomes flat and in pain for a short period of time due to spending 30 consecutive minutes or more on your cell phone either texting someone or playing cell phone games. this excludes the iphone and the sidekick
i got a flat thumb today from texting Rose all day

i have a flat thumb from playing monopoly on my cell phone
by PeeDee287 December 14, 2007
5 Words related to flat thumb

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