Ten RRSP questions answered

If you mean that you have a $100,000 of unused RRSP contribution room, then the answer is no you are not limited to putting in the yearly maximum. You could put in the full amount depending on your income, but beware of the AMT tax rules.
On the other hand, you may want to spread the unused room over more than one year so the tax rate of savings (tax rebate) on the income you are getting the deduction for is at the higher rates of tax.
By way of example if your income was 150k+, you may not want to take 100k of deductions all in one year. Instead, spreading it out over two or three years may allow you to save taxes at 53% or 43% instead of 31% or lower tax table rates. The difference in planning and being patient is you could easily save over $20,000 in taxes.
Generally speaking, if you are working with a CFP, CPA or R.F.P. it pays to get professional advice, as the ideas can be far greater than the cost.
Good luck!