Words in the Sex Dictionary starting with the letter U
- U-haul
- UFOs
- ugly
- ultimate favor, the
- umbilicus
- un-eat
- unbetty
- unclad
- Uncle Jim and the twins (at attention)
- unclogging the drain
- uncovered
- undeflowered
- under the weather
- undercover fag
- undercut
- underkecks
- underthings
- undies
- undy-grundy
- unfeed
- unholy wedlock
- unite
- united in holy matrimony
- unload
- unmentionable disease
- unnatural act
- unnatural sexual intercourse
- unparliamentary
- uns
- unsliced bologna
- untie the knot
- unwedlocked
- up a bone
- up close and personal
- up in you
- up the bosco boulevard
- up the chocolate highway
- up the mustard road
- up the shitter
- up the ying-yang
- up to the ears in love
- up your ass!
- upchuck
- upper decker flopper stopper
- upper works
- upright grand
- ups
- upside-down cake
- uptown gal
- uranism
- urbane
- urethral opening
- urge, the
- urination
- urning
- urogenital tailpiece
- urophobia
- USer
- using the force on Darth Vader
- uterine involution
- utsnay
- uxoricide
- u/c
- Ugandan affairs
- ugly deed, the
- ultimate insult, the
- umfriend
- UNAIDS
- unbrownable
- uncle
- Uncle Ned
- unclogging the sink
- uncut
- undefuckable
- under thunder
- undercover man
- underfug
- underpant eel
- underwear
- undinism
- uneat
- unfortunate woman
- union
- unite oneself with
- united in wedlock
- unloading passengers from the five-car train
- unmentionable vice
- unnatural connection
- unnatural sin
- unplucked
- unsheathing the pork sword
- unslough
- untried
- unwell
- up a gum tree
- up for grabs
- up one's butt
- up the brown
- up the dirt road
- up the old dirt road
- up the spout
- up time
- up to the hilt
- up-pointed male spike
- uphill gardener
- upper decks
- upper-ten
- upright grin
- ups and downs
- upside-down kiss
- Urals, The
- uranist
- urethra
- urethral orifice
- urinal sniffer
- urinator
- urningism
- urolagnia
- uroscopy
- usher
- ussypay
- uterine orgasm
- uttana-bandha
- uxoriosis
- uck-fay
- Ugandan discussions
- ugly little dog Dick
- ultimate kiss, the
- umlauts
- unass
- unbutton the mutton
- Uncle Dick
- Uncle Samantha
- uncouple
- undamaged
- undeniable
- undercarriage
- undercover punk
- undergrots
- underparts
- underworld
- undraped
- unemployed, the
- unfuckable
- unisex
- united
- units
- unloading the gun
- unmentionables
- unnatural debauchery
- unnatural vice
- unprotected sex
- unsightly
- unspoken language (of love)
- unvirgin
- unwritten law
- up and coming
- up for it
- up the apple-maker
- up the bum
- up the duff
- up the poke
- up the stick
- up to one's ears in love
- up to your apricots in kipperland
- up-tails-all
- uplifting
- upper holloway
- uppers and beneath
- upright wink
- upscope
- upskirt
- uranian
- uranophobia
- urethral eroticism
- urethritis
- urinary bladder
- urinism
- urnism
- urophile
- urp
- usher of the back door
- usurper
- uteromania
- uxoravalence
- udders
- uglies
- ugsome
- ultraviolet wand
- umph
- unattached
- uncircumcised
- Uncle Frank
- unclog the pipes
- uncover girl
- undamaged goods
- under par
- underchunders
- undercover sissy
- undergrowth
- undertaker
- undescended testes
- undressed
- unfair sex
- unfurnished apartment
- unit
- united in holy bedlock
- unleash the fury
- unlock the handcuffs
- unnatural
- unnatural sex
- unofficial wife
- unruly member
- unsliced
- unt-cay
- unwed
- up
- up and down
- up her way
- up the ass
- up the butt
- up the flue
- up the pole
- up the stump
- up to the bumper
- up to your nuts in guts
- upavishta
- upper deck
- upper regions
- upright
- uprooting the big mushroom
- upshoot
- upstairs
- uranianism
- urban legend
- urethral meatus
- urethrorrhea ex ubidine
- urinary petcock
- urninde
- uro-sexuality
- urophilia
- useless, the
- usher of the hall
- uterine frenzy
- uts
- uxoravalent