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Slang term meaning 'nothing'. Can also mean 'anything' if a double negative is used.
See bugger-all, shit-all, cock-all.
1. You've done dick-all since you got here!
2. That idiot doesn't know dick-all!
by keyshaw June 10, 2004
another word for nothing.
I learned dick all in lecture today
by guinnessgirl May 22, 2006