#pto

What does "pto" mean?
PaigeTapOut, ParaTodaOcasion, ProverbsThirtyOne, PhilippeTheOriginal, pictures_to_order, PoneleTuOnda, PapisTakingOver, ParaTodaOcasión, PhillyTookOver, PalmTreesObsession, PostTheOrdinary, paleoTakeOver, POSiTiONS, portraitToOrder, PraiseTheOne, PeaceThroughOneness, PositiveThoughtsOnly, photographersinThousandOaks, PassThisOn, pass_that_on, PlayTimeOver, PachecoThisOut, photobyTinaOldon, ParaTodoOSempre, postTheOrdinary, PacmanTeOdio, PraTodoOSempre, PraTerminarODia, portrait_to_order, paintings_to_order

pto-d 16837 pto-wn 263535 pto-ordaz 93518 pto-lacruz 160622 pto-fijo 39243 pto-montt 24741 pto-cabello 37165 pto-vallarta 20309 pto-rdaz 8004 pto-td 2768 pto-varas 11150 pto-rico 5900 pto-pta 6517 pto-nline 9015 pto-amo 2528 pto-sis 2556 pto-lemaida 4378 pto-piritu 5500 pto-la 1280 pto-ng 960 pto-rtho 974 pto-tw 294 pto-ftheday 42 pto-berrio 688 pto-wn2016 730 pto-wnniggas 431 pto-wn150 529 pto-ficial 656 pto-wnshyt 193 pto-nair 188 pto-wn15 302 pto-oftheday 110 pto-wnspirit 333 pto-lacruz2015 473 pto-2015 242 pto-ey 104 pto-file 94 pto-rigins 294 pto-paige 212 pto-et 139 pto-b2se 37 pto-wn4life 235 pto-2014 190 pto-fbcontest 36 pto-wnorbust 258 pto-wn13 122 pto-wnextracts 260 pto-cabellocorre 220 pto-nwha 135