In simpler language , it is an advanced search . You could , for example search for grey , but maybe it is spelled gray , so you could do gry and it would find both versions . Edit Regular expressions are black wizardry beyond my comprehension . <| sep |> Amputee midget scat porn <| sep |> I ' ve been there before . I couldn ' t turn someone down over something like that . <| sep |> Might need some minor text fixes in this comment <| sep |> I just looted landmarks and buildings etc . Crafted clothes , pulse , mines , support station , found purple guns and some gear , I think I had 2 purple guns , and 3 purple gear items , pulse and other talents , went to dz , found anti Virals , extracted and had my throat slit . Lol . <| sep |> Lmao we put up 42 last game and it ' s not even halftime yet