1 definition by Harrison Stevens

1

The act of rolling on the floor in your bathroom while thumbing your asshole. This excludes any time after you have received a blumpkin.

" I saw Devontae through his window thumbin' it yo."

by Harrison Stevens August 04, 2005

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• © 1999-2021 Urban Dictionary ® • advertise • terms of service • privacy • dmca • bug report • help • blog • data subject request