Masterbation 

We're a male or a female pleasures them self's in a sex like motion

I am a masterbation expert

Masterbation by Glittergal_197 October 6, 2017

female masterbation 

putting your finger or fingers in your vegina in and out until pleasured, sprayed out sticky juicy warm cum and screamed like a bitch

I know Becky, I waited for Bob to come over all night long but he didn't. So instead, I fingered myself and ate my cum.

female masterbation by fuck master June 5, 2003

chemical masterbation 

To use/abuse or pleasure oneself with drugs. Usually referring to narcotics or rather hard drugs such as opiates (heroin, morphine oxycodone, methadone, demorol, ect..) or the stronger stimulants such as cocaine, methamphetime or other amphetamine like compounds. And also usually doing so in high excess/abuse.

person a:Man, that cat used to be cool but went over the edge with chemical masterbation
person b: what do you mean?
person a: he went off the deep end shootin coke.
person b: oh yeah your right, he jacked some money from me the other day.

chemical masterbation by LeibstandarteAdH (Matt B.) April 1, 2007

female masterbation 

watering one's flower. ;)

female masterbation by Anonymous January 23, 2003

masterbation 

The endearing way grade schoolers spell the act of spanking the monkey or fucking Manuela and her 5 sisters

According to ancient myth, masterbation gives you hairy palms

masterbation by Hugh G Rection February 18, 2005

Masterbation Port 

A Hole in a pair of pants or shorts that is located in the crotch reigon. This can be applied to both males and females, but mostly found in lazy males.

"Dude, that's sick, you have a freakin' masterbation port in your pants, Stitch it up already!"

Masterbation Port by H_Zula April 6, 2005

masterbationist 

one who masterbates in public

Jada is such a masterbationist.

masterbationist by Bizzoner September 14, 2003