Word used in bleak situations, normally when one has made a serious faux-pas or is rethinking an embarrassing situation. Not as overt as a swear word but just as potent when muttered under your breath while walking at a quick pace, or blurted out (torrets style) when you are re-living an awkward situation in your head. Also good to shout when you painfully stub a toe or bang a funny bone against something hard.
Thinking about when you farted really loudly while laughing at that hottie's joke.... "Falamanala!!!!'
or painfully smashing you pinkie toe hard against the chair leg... 'Falamanalaaa!!"