画不出蜡笔小新的悲伤涂不出多啦A梦的色彩
[huà bù chū là bĭ xiăo xīn de bēi shāng tú bù chū duō la a mèng de sè căi]
'Unable to draw Crayon Shin-chan’s sadness and Doraemon’s color'. Here, both Shin-chan and Doraemon are famous anime characters; by using these two figures, the nickname suggests a sense of helplessness or inability to fully express complex feelings, blending sadness (from Shin-chan’s stories) and longing for adventures/friendship as symbolized by Doraemon.