/ Dictionary / Index G good time: Meaning and Definition of Find definitions for: good' time' Pronunciation: [key] — Prison Slang. Prison Slang. time deducted from an inmate's sentence for good behavior while in prison. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. good-tempered good-time Charlie Related Content Daily Word Quiz: supercilious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language