similar to green thumb, but further than plants. everything one touches turns to shit.
WTF you break EVERYTHING. Black thumb dude.
by mark fuckin g December 22, 2010
A wannabe gardener who kills plants. Opposite of green thumb.
I have killed all the plants in my house. I must have a black thumb.
by Clifford D. September 13, 2006
A term for the inevitable black thumb received from pushing the ash down in a pipe
"My wife knows I started smoking again because of my black thumb, I always forget to wash it off!"
by InsaneJoker March 27, 2015