The term 'GOOD ONE!' can be represented by several different crossword solutions. The first is 'HAHA' which is a four letter word that is used to express laughter. The second is 'OOH' which is a three letter word used to express surprise. The third is 'NICE' which is a four letter word used to express approval or admiration. The fourth is 'SAMARITAN' which is a nine letter word used to describe someone who is generous and helpful to others. The fifth is 'SAINT' which is a five letter word used to describe someone who is exceptionally good and virtuous. The sixth is 'HAHAHAHA' which is an eight letter word used to express intense laughter. The seventh is 'KNEESLAPPER' which is an eleven letter word used to describe a joke that is funny but not particularly clever.