As mentioned in previous threads (and I am surprised Recceguy didn't merge this with the others), nothing stops you (or anyone) from re-applying. That said DAOD 5002-1 http://www.admfincs-smafinsm.forces.gc.ca/dao-doa/5000/5002-1-eng.asp is pretty clear.
"In accordance with QR&O paragraphs 6.01(2) and (4), unless special authority is personally obtained from the Chief of the Defence Staff (CDS), an applicant with former service shall not be enrolled if released:
■as medically unfit;
■for inefficiency;
■with a conduct assessment below “good” or equivalent, other than a conduct assessment below “good” or equivalent that was based upon conviction for which a pardon has been granted under the Criminal Records Act; or
■for misconduct.
For applicants with former CF service, the above includes any release from the CF under Item 1 (misconduct), 2 (unsatisfactory service), 3(a) (medically unfit for further service), 5(d) (not advantageously employable) or 5(f) (unsuitable for further service) of the Table to QR&O article 15.01, Release of Officers and Non-Commissioned Member. For applicants with former service in any other military force or the RCMP, the above includes any reason analogous to one of these Items.
The recruiting centre MAY process your file and start the paperwork for that CDS waiver, however you really really need to convince them that it is worth their time and effort to do so (ie you furthered your education, did community/volunteer service)
Nothing is impossible, however that is the official policy, and if the people at your nearest CFRC are competent and on the ball, they will tell you the same thing.