Mammoth Uncensored Word List:
138 words ending with sh, 6 letters long

ablush afresh aguish airish ambush ankush arrish aslosh aspish banish barish bedash bluish boyish calash camash choush cohosh cowish coyish creesh danish dawish debosh delish dotish dovish dryish dudish eadish eddish elfish elvish emdash emmesh encash endash enmesh famish fetish fikish finish fivish floush fluish fogash galosh gamash garish gluish golosh goyish harish immesh impish inmesh inrush jadish kibosh kybosh lakish lamish latish lavash lavish linish lowish marish minish modish monish mopish morish mulish nebish newish nicish oafish oddish offish ogrish oldish onrush owlish palish papish parish perish polish popish potash punish qurush radish rakish ravish rawish rehash relish rewash rudish scoosh secesh sheesh shyish siwash skoosh skyish sloosh slyish smoosh sneesh splash splosh sprush squash squish squush stoush swoosh thrash thresh thrush tonish toyish tykish unlash unmesh unwish upgush uppish uprush vanish wairsh wheesh whoosh widish winish