It means he does not, or will not issue you anything.
If the amount is below $600 he is not required to.
Regardless if you get a 1099 or not, it is still taxable income.
If you think you are an actual employee versus indedependent contractor then see below:
See link below and you could file an SS8 with IRS (your boss will not be happy however)
https://www.irs.gov/businesses/small-businesses-self-employed/independent-contractor-self-employed-o...