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Meaning of college try

col'lege try'

Pronunciation: [key]
  1. maximum effort for success on behalf of one's group, team, alma mater, etc. (usually prec. by the phrase the old): We may not make the deadline, but we'll give it the old college try.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.