Spank Off 

v. To masterbate; wank

i like to vigorously spank off.

Spank Off by jim jimson November 27, 2002

good night spank off 

using sexual gratifaction (masturbating) as a way to relieve stress or anxiousness so as to go to sleep.

Man, I was freaking out about that test last night, but then I had a good night spank off and got right to sleep.

good night spank off by MyManEd January 15, 2009

spank one off

v. Masturbate.

He disappeared into the bathroom for 10 minutes, and I knew he'd gone to spank one off.

spank one off by Pecan Pie April 30, 2004

Skank-off 

To bitch about people (mostly girls) crap choice in clothing. Usually cheap and of rubbish quality. The person can wear it once maybe twice, if that. skank, slut clothes bitching skanky

'Omg did u see that girls outfit last night..?'
'Yeah me and Ellen had a bitch about it'
'Oh so you had a skank-off too?'

Skank-off by Abi <3 December 6, 2006

Skank-off 

To be present in a nightclub with one or more female friends, potentially on drugs, and try to attract more attention than them by kissing and grinding members of the same or opposite sex, making irritating noises (possibly attempts at conversation) and wearing as little as possible without being charged with indecency.

The D-floor at Sugar last Saturday, major skank-off!

Skank-off by Spice6987 January 20, 2011

Slank Off 

To do whatever you want and not do some other stupid stuff instead.

Marcel: "Hey bobby, you doing your homework?"

Bobby: "No, F that! I am going to slank off!"

Slank Off by Chip&Pepper March 27, 2009

spark off 

To engage in the act of masturbating, usually violently.

Attractive female: I'm thinking about having a shower.
Typical male: That's what I think about when I spark off.

spark off by ElCreepo September 18, 2011