W.H.P.H. is an acronym for "Work Hard, Play Hard" in reference to the song "Work Hard, Play Hard" by Wiz Khalifa. Though this does not necessarily mean to go ace the SATs and then do keg stands until the sun rises, it is an attitude open to interpretation and can be used in various situations (depending on how far one takes it).
Side Note: Only a select few who truly comprehend the essence of WHPH are able to play hard before working hard.
Deeper Meaning: This phrase makes up one of the branches in the tree of life motto's, which only a few people can successfully master and exhibit on a daily basis.
Curing cancer by day, clubbing in Canada by night. #WHPH