A signup bonus (a casino signup bonus, of course) is a bonus that a casino or sportsbook gives you upon registration. There is no need to make a deposit like with “welcome” bonuses, so there is no need to invest any of your own money.
The only hard work is to create an account, and then maybe also submit KYC documents if you win enough or play through the wagering requirements and are ready to withdraw your winnings.
For example, a 200% match up to C$100 means if you deposit C$50, the casino will give you C$100 more to play with. That means you’ll have a total of C$150.
Will the bonus be used before, after or together with the deposit is another matter which must be stated in the casino’s T&Cs with wagering requirements and other important terms. The casino match bonus is not free money.
It tells how many times you must play your bonus and/or deposit amount through to withdraw any winnings from them (see also “What is a sticky bonus?”).
Example #1: A 100% match bonus up to $100 with a 40x bonus WR means you must play the bonus $100 x 40 = $4,000. Do that and you’re good to withdraw your winnings.
Example #2: If the wagering is for both the bonus and deposit, eg 20x the bonus and 20x the deposit amount, then the rollover is just done in a specific order, depending on which amount is played first.
In most cases, the answer is no, because of game weighting. Table games usually contribute less towards the WR than slots, as do high RTP slots, for obvious reasons.
A WR is an acronym that stands for Wagering Requirement (aka playthrough)
For example, if you play roulette that contributes only 10% towards the rollover, then it means the WR is not 40x but 400x the bonus amount.
Free Spins are spins that you get on a slot of the casino’s choice (usually on one made by NetEnt, Play’n GO, Thunderkick, Pragmatic or Quickspin). The spins have a pre-set bet size (usually $0.10), which you cannot change. That’s why sometimes there can be a major difference between two lookalike free-spin bonuses at different casinos. But don’t worry, they often make sure players know that to stand out.
There are many incorrect versions of what is a sticky bonus (or parachute bonuses), so here’s the correct one. A sticky bonus is a casino bonus that ties your deposit AND its winnings with wagering requirements. So you cannot request a withdrawal unless that wagering is completed or at the expense of losing any winnings generated with the deposit and the bonus.
Sticky bonus example: You deposit $100 and get a 100% match 
bonus in return. That makes it $200, all of which is subject to wagering requirements from the start. Usually such is the case with offers where you see that both the bonus and deposit amount have a wagering requirement.
What’s a non-sticky bonus? – It’s the one that you can withdraw WITH any winnings before you touch the bonus (because in this case it’s always used second). However, if such a withdrawal is requested, the bonus will be removed.
In other words, it’s 10x more, to the player’s disadvantage
Often there’s no bonus code needed. Simply click on the link and register an account to get your freebies or bonus cash.
In other cases, remember to use the bonus code or reach out to the casino’s customer support via live chat to let them redeem it for you manually.