1) For Fuck's Sake - a common expletive used online.
2) Flying Farang Syndrome - when rich older western men move to Thailand, marry a young Thai girl and can 'suddenly' realise they can fly from a high rise condominium on their honeymoon. As a result this leads to the death of the foreigner (farang in Thai) and a quick inheritance for the 'grieving' bride.
1) FFS you're an a-hole.
2) That bar girl has had six husbands, but they all suffered from FFS. The previous occupant in this condo had FFS.
Adjective form of the progressive verb facepalming (the act of raising one or both hands to your face when something stupid happens). When something is really frustrating and stupid and you end up realising it's facepalmingly stupid.
Michael Gove's education reforms are facepalmingly stupid.