with ONEBGG I knew it be LMFAO Laughing My Fat Arse Off... and sometimes he would put LMFBO...my fat butt off and he was up to around 500 lbs never know.... Like Fubar I put it on a legal document in 1980 got a call and as I said Fouled Up Beyond all recognition the person reading it with me used the F.bomb It's in the eye of the beholder imo Anyways.....It STAYED on the document and there was no reprimand