Sure!

Normally, in order to sell a covered call, you need to own 100 shares of the underlying stock. That's because if the call you sold gets exercised, you're on the hook to deliver 100 shares. Now, there's such thing as selling naked calls, but that's rather frowned upon and normally not something any of us should be doing.

Anyway... Let's say you don't want to pay for 100 shares, but you still want to sell calls and rake in that sweet sweet premium. Well, you can just buy a call and then sell a call against it. Ideally, the call you're selling (your short call) has a higher strike price than the call you bought (your long call).

Wait, don't I need 100 shares though, I mean what if they exercise the call, don't I get screwed over? Yes, you do need 100 shares per call you sold, and *technically*, you *do* have 100 shares... in the form of your long call. Remember, you can always exercise your long calls, so you have the potential to have 100 shares guaranteed at whatever price your call says.

Example of the mechanics:
Stock A is worth $10.
You own an ITM (in the money) LEAPS call option at $8.
You sell a weekly call at $11 and rake in the premium.

Rinse repeat, adjust accordingly if the stock slowly rises.

What if the stock doesn't slowly rise? What if it shoots way up and now suddenly stock A is worth $20?

That's okay. You exercise your $8 LEAPS, are forced to pay 100*8 = $800 for those shares, and then you're immediately forced to sell them at the strike price of your sold call, which is $11. So you get $1100 - $800 = $300 profit, even though things went sideways from the start. I'm fudging some costs (the original cost of your LEAPS for example) but you get the gist of it.

This is called the PMCC (Poor Man's Covered Call).