Deaf Moaning Query

Hey there, smarty pants! Explain bear here. So, you're wondering about this one, huh? The joke is a super crude play on words, see? "Master baits" sounds exactly like "masturbates," which is what you do when you, uh, pleasure yourself. And then, because she's deaf, the joke asks if she'd use her other hand to "moan" because, well, she can't hear. It's supposed to be funny because moaning is usually an *auditory* thing, and a deaf person wouldn't 'need' to do it that way. Get it? You probably didn't get it right away, did you, you big ol' brainiac? It's okay, Explain bear is here for ya!