natasha’s humor is so great though because it’s almost close to but also completely different from what you’re used to seeing from other (male) antihero characters - you know, the whole Charming Asshole, snarky-in-the-face-of-danger, devil-may-care vibe (see: tony stark, peter quill in the mcu)
natasha always has a gravity to her no matter how flippant or sarcastic she’s being. her humor is dry and constantly self-aware, it’s there because she’s seen so much and done so much that what else can she do but crack a smile? and the best, the best thing about natasha’s humor is that the jokes are mostly for herself. this is a woman who is known to be cold and distant with others, but when she climbs onto a boat full of unknown danger in the dead of night, she thinks to herself “lost in a sea of uncertainty…pun intended.” she doesn’t care if nobody thinks it’s funny but her because she’s her own audience (which can have a sad implication regarding how much time she’s spent alone in her life). in the charming asshole trope, the humor or dickishness usually at least partially turns out to be a performance, one that masks some sort of vulnerability. with natasha, it’s the opposite. the humor is where she’s vulnerable, where she’s honest. if natasha tells you a joke, it means she’s a. probably about to kick your ass and thus doesn’t give a shit or b. that she trusts you. (also, when natasha makes fun of steve in catws it never crosses a line into actual meanness - she’s not insensitive, just irreverent).
basically: natasha’s humor is for herself. she hasn’t exactly had a funny or entertaining life, so she’s got to generate that or i think she’d break down. and the world is pretty funny, once you’ve seen enough of it. brutal, complicated, and unfair - but pretty fucking funny, too. knowing natasha, whatever there is of a real her, means being in on the joke.