Following are all the washboard like words, in the list below.
SPLASHBOARD
100% like washboard
BANJO
33.49% like washboard
WASHTUB
33.49% like washboard
WASHTUBS
33.49% like washboard
MANDOLIN
33.49% like washboard
HARMONICA
33.49% like washboard
WASHRAG
33.49% like washboard
CORRUGATIONS
33.49% like washboard
CORRUGATED
33.49% like washboard
BANJOS
33.49% like washboard
TAMBOURINE
33.49% like washboard
XYLOPHONE
33.49% like washboard
WASHBOWL
33.49% like washboard
WASHING
33.49% like washboard
AUTOHARP
33.49% like washboard
GUITAR
33.49% like washboard
WASHBOWLS
33.49% like washboard
CONCAVE
33.49% like washboard
FIDDLE
33.49% like washboard
MIDSECTION
33.49% like washboard
HONKYTONK
33.49% like washboard
WASHDAY
33.49% like washboard
GUTBUCKET
33.49% like washboard
DRUM
33.49% like washboard
FATBACK
33.49% like washboard
TUBA
33.49% like washboard
KAZOO
33.49% like washboard
HUMPS
33.49% like washboard
WASHCLOTH
33.49% like washboard
GROOVES
33.49% like washboard
BONESHAKER
33.49% like washboard
DIMPLED
33.49% like washboard
GROOVED
33.49% like washboard
DISHPAN
33.49% like washboard
BONGO
33.49% like washboard
GRAVEL
33.49% like washboard
KNOBBY
33.49% like washboard
BEDSPRINGS
33.49% like washboard
STRIGIL
33.49% like washboard
TROMBONE
33.49% like washboard
MARACA
33.49% like washboard
RUTTED
33.49% like washboard
BUMPY
33.49% like washboard
ORCHESTRION
33.49% like washboard
WOODEN
33.49% like washboard
CHORDOPHONE
33.49% like washboard
WATERWORN
33.49% like washboard
UNDULATIONS
33.49% like washboard
DIMPLES
33.49% like washboard
PIANO
33.49% like washboard
DULCIMER
33.49% like washboard
ACCORDION
33.49% like washboard
FLATCAR
33.49% like washboard
SHOULDERLESS
33.49% like washboard
BUCKBOARD
33.49% like washboard
BONGOS
33.49% like washboard
ROADHOUSE
33.49% like washboard
VIOLIN
33.49% like washboard
BELLY
33.49% like washboard
DRUMS
33.49% like washboard
JUGS
33.49% like washboard
CONCERTINA
33.49% like washboard
SOAPSUDS
33.49% like washboard
DISHWASHING
33.49% like washboard
RATTLETRAP
33.49% like washboard
HAIRBRUSH
33.49% like washboard
BOOTJACK
33.49% like washboard
WEATHERWORN
33.49% like washboard
CLOTHESHORSE
33.49% like washboard
WASH BASKET
33.49% like washboard
SCOURING PAD
33.49% like washboard
SCOUR
33.49% like washboard
BACKWASHER
33.49% like washboard
WASHER
33.49% like washboard
IRONING BOARD
33.49% like washboard
CLOTHESBASKET
33.49% like washboard
SCOURS
33.49% like washboard
CLOTHES SCREEN
33.49% like washboard
DASH-WHEEL
33.49% like washboard
BAGWASH
33.49% like washboard
IRONING BASKET
33.49% like washboard
LAUNDRY BALL
33.49% like washboard
WIPE
33.49% like washboard
SCRUB
33.49% like washboard
WASHLOAD
33.49% like washboard
MANGLE
33.49% like washboard
WHISKBROOM
33.49% like washboard
WRINGER
33.49% like washboard
WAULKING
33.49% like washboard
DISHRAG
33.49% like washboard
CLOTHESBRUSH
33.49% like washboard
DISHCLOTH
33.49% like washboard
FACE WASHER
33.49% like washboard
HANDCLOTH
33.49% like washboard
MOPBOARD
33.49% like washboard
BACK SCRUBBER
33.49% like washboard
DISHTOWEL
33.49% like washboard
LAUNDRY LINE
33.49% like washboard
WIPER
33.49% like washboard
FACECLOTH
33.49% like washboard