drips rdips dirps idrps ridps irdps drpis rdpis dpris pdris rpdis prdis diprs idprs dpirs pdirs ipdrs pidrs ripds irpds rpids prids iprds pirds drisp rdisp dirsp idrsp ridsp irdsp drsip rdsip dsrip sdrip rsdip srdip disrp idsrp dsirp sdirp isdrp sidrp risdp irsdp rsidp sridp isrdp sirdp drpsi rdpsi dprsi pdrsi rpdsi prdsi drspi rdspi dsrpi sdrpi rsdpi srdpi dpsri pdsri dspri sdpri psdri spdri rpsdi prsdi rspdi srpdi psrdi sprdi dipsr idpsr dpisr pdisr ipdsr pidsr dispr idspr dsipr sdipr isdpr sidpr dpsir pdsir dspir sdpir psdir spdir ipsdr pisdr ispdr sipdr psidr spidr ripsd irpsd rpisd prisd iprsd pirsd rispd irspd rsipd sripd isrpd sirpd rpsid prsid rspid srpid psrid sprid ipsrd pisrd isprd siprd psird spird
Note: these 'words' (valid or invalid) are all the permutations of the word drips. These words are obtained by scrambling the letters in drips.