哭不出蜡笔小新的悲伤笑不成海绵宝宝的微笑
[kū bù chū là bĭ xiăo xīn de bēi shāng xiào bù chéng hăi mián băo băo de wēi xiào]
Can't Cry as Sad as Crayon Shin-chan and Can't Smile as Bright as SpongeBob. This name comes from two popular cartoon characters. Crayon Shin-chan often exhibits an unchildlike sadness while SpongeBob is always optimistic with his signature big smile. The user indicates they cannot express these extreme emotions.