站在坟前唱忐忑蹲在坟前调戏鬼
[zhàn zài fén qián chàng tăn tè dūn zài fén qián diào xì guĭ]
This has a darkly humorous undertone. Literally translating into singing uneasily standing and squatting in front of the grave teasing the ghost, it indicates being carefree despite being around death or showing disdain for ominous atmospheres.