Thesaurus:masturbate

• bash one out
• bate
• beat it
• beat off
• crank one out
• fap
• frig
• jack off (US)
• jack it
• jerk it
• jerk off (US)
• jork it
• knock one out
• masturbate
• mastuprate
• play pocket pool (Britain)
• play with oneself
• pleasure oneself
• rub one out
• self-abuse
• self-pollute
• service oneself
• skeet (Canada)
• sport one's oak (Britain, public-school slang)
• toss (primarily Britain)
• toss off (UK)
• touch oneself
• wank (primarily Britain)
• wank off (Britain)
• whack off

Female:

• buff the muffin
• diddle
• flick the bean
• jill
• jill off
• itch the ditch
• pet the kitty
• play the clitar
• polish the pearl
• ring the devil's doorbell

Male:

• bash the bishop
• beat one's meat
• beat the bishop
• bop the bishop
• choke the chicken (US)
• flog the dolphin
• flog the log
• pull one's pud
• spank the monkey
• wax the dolphin
• whittle the whalebone

• masturbation    [⇒ thesaurus]
• erection    [⇒ thesaurus]
• ejaculate    [⇒ thesaurus]