グッモーニンalso: グッモーニングMeanings1expressiong'morning; good morningcolloquialVery casual, colloquial greeting used among friends or in relaxed settings. A contraction of グッドモーニング.See also: グッドモーニングおはよう!グッモーニン!Morning! G'morning!グッモーニン、今日きょうもいい天てん気きだね。G'morning, nice weather again today.