pokkai is from chinese dialect,cantonese.Pokkai means fall down or broke or curse you!!it have various meaning and it depends on situation.
eg
1)MR A:Fuck this year damd pokkai la, loses in sharemarket.
2)MR B:Pokkai meng,go get a life, dun bother me!!
3)Yesterday hon pokkai. His head and hand were injured.
When you have to pee in a movie but don’t want to miss anything, and must do the following mental equation: will the amount I have to pee cause enough discomfort to diminish my attention capacity for the remainder of the movie to an extent which is greater than the amount of the movie I would miss by making a mad dash to the restroom.
I saw Satantango last night, wonderful film but by the 5th hour I had to start doing pee calculus.
Short-hand for the word floccinaucinihilipilification, meaning the estimation of something as valueless (encountered mainly as an example of one of the longest words in the English language).