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A playing marble.
1. An agricultural school or college.
2. A student enrolled at such a school or college.
[ag(ricultural) + -y.]
1. slang US an agricultural student
2. informal a kind of playing marble
n. (sometimes cap.)
1. an agriculture college.
2. a student at an agricultural college.
Not a student or graduate of an A&M (Agricultural and Mechanical) school but, rather, an agate marble.