1 definition by Rochester2018washell666

When one human consumes methamphetamine and starts flailing. Or acting like an asshole. Usually done out of public site.
Hey kids quit meffing around.

Sarah told me ,Dustin just won't stop meffing with everyone.

Sarah told Kyle about Dustin meffing with people. Dustin told everyone a different state when asked where he was moving. Jackson said he wasnt meffing with him anymore though.
by Rochester2018washell666 February 4, 2019
Get the Meffing mug.