青春荒唐我不負你萬劫不復我定陪你
[qīng chūn huāng táng wŏ bù fù nĭ wàn jié bù fù wŏ dìng péi nĭ]
A very dramatic way to express loyalty and companionship despite youthful recklessness. 'I will not betray you no matter how reckless my youth gets, if I go through countless hardships, I will still accompany you'. This conveys deep loyalty.