OP needs it's own drinking game thread :p
After the Thriller Bark Saga,
Every time someone stares dreamily into h=the distance and goes "Labooooon" take a drink.
Every time someone mentions Vegapunk, take 3 drinks
Every time Luffy introduces himself as "Monkey D. Luffy" take a drink
Every time Nami's eyes turn into Beri signs take a drink
Every time Zoro falls asleep at a weird moment or gets lost, take a drink
Every time Usopp gets the I can't do this, go into there, etc. disease take a drink
Every time Sanji cooks something special for Nami and Robin, take a drink
Every time Chopper freaks out when he's complimented, take a drink
Every time Robin mentions someone possibly dying or something equally morbid, take a drink
Every time Franky mentions cola or being a pervert, take a drink
Every time Brook asks to see a girls panties, farts or burps- take a drink
Every time a shichibukai is introduced take three drinks
Every time Sanji and Zoro get into a fight take a drink
Every time Nami gets mad at someone take a drink
Every time Usopp and Franky hang out together, take a drink
Every time Buggy gets mad at the mention of his red nose, take a drink
That's all I can think of at the moment….