Originating in some kind of msn convo as a typo and then spreading like aids, lmoa is somehow derrogatory for the user himself/herself, like you use it when you try to call yourself fat. It's theorized but not proven that fat emos use this term frequently.
I_L1K3_2_e@t_c@k3: its my chair shaking while im lmoaing
I_L1K3_2_e@t_c@k3: yeh lmoa, mm chocolate fudge is delicious
kevo: stop eating
I_L1k3_2_e@t_c@k3: ARGGGH i just cut my own cake into 2 pieces that was painful.
(kevo is now offline)