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Being real great at Yahtzee, and die related gambling games. Also being able to cut holes in other kids potato sacks so they lose at that game as well.
"Charles....that's the third time you won Yahtzee....You have mastered yahtomy'

Example 2
"Ha! Ricky just cut holes in all the other boy's sacks. They gonna trip real bad"
by Ceuseman March 12, 2012
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