If you have a default judgment in place, the next step for the plaintiff is to enforce judgment. That can include garnishment of wages but they typically first make an informal request to get you to pay. You'll also be asked to fill out a financial disclosure statement.
Though a judgment has been entered, you might still be able to negotiate a lower amount to re-pay. If you're considering bankruptcy, ask a bankruptcy lawyer the effect that has on the judgment. I am not 100% sure, but I think it wipes it out. Check with a bankruptcy attorney first.