Stashing rhymes with:
bashing, caching, cashing, clashing, crashing, dashing, fasching, flashing, gnashing, hashing, lashing, rehashing, slashing, smashing, splashing, thrashing, trashing
Stashing sounds like:
seducing, shotguns, sightseeing, sitcoms, sketching, skittishness, st-james, st-johns, stachnik, stacking, staging, staking, statesman's, stegenga, sticking, stitching, stocking, stockings, stockman's, stoking, studzinski, st_james, swatching, switching