Used in this sense as early as 1995, e.g. in an online from October 28, 1995: What happened? the Amigoid asked. D'nt knw, she said. Jst wk p nd hrd y tw tlkng n thn, sddnly nd wtht wrnng, thr ws ths ns. What? Robotech_Master asked. I think I know what happened, Lawrence said. It must be part of the Silliness that's infecting the Author's Altiverse. S wht hppnd? You've been disemvoweled, the Amigoid informed her.