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1 definition by
hamwallet4lyfe
Top Definition
mastering
The polite way to refer to rubbing one out.
I walked in and Ryan was mastering on the couch.
by
hamwallet4lyfe
January 23, 2009
Buy a
mastering
mug!
© 1999-2021 Urban Dictionary ®
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© 1999-2021 Urban Dictionary ®
advertise
terms of service
privacy
dmca
remove
help
