Ok but like sometimes I think about how Wa//lly in the context of the show needs some things explained to him, sometimes even very basic things like laughing and feeling certain emotions... so I imagine he maybe needed to be explained what farts are... uh, I'm... (long post, I'm ashamed lol)
Like I imagine he's with Ba//rn//aby at How//dy's bodega, when How//dy hands him a chili dog and Ba//rn taking it (and being the little joker that he is) says, "How//dy, I appreciate the chili dog, but I'm blaming you for when I get gas later." And Wa//lly just goes, "Gas? But you're not a car." And then How//dy and Ba//rn have a good laugh.
I imagine they explain the process to him, how someone sometimes just needs to fart, but Wa//lly's still lost, even though How//dy feels like he explained it good enough. Ba//rn's already thinking of (explosive) examples he can give himself, especially after eating that chili dog.
But instead, Ho//wdy gives him a nice big can of beans, on the house. Wa//lly stares into the can and blinks, eating what would be considered big spoonfuls of beans telepathically with his eyes. By the end, he feels his belly. It's swollen and putting pressure on the buttons desperately holding his cardigan closed. His two hands feel his belly, it feels weird for his normally flat stomach to feel like a balloon. How//dy and Ba//rn are giggling a little, but notice Wa////lly's having trouble. He knows he has to push but nothing's happening. Ba//rn gently squeezes his sides, which results in Wa//lly's backside finally making noise.
A loud, strong toot, rumbling for 10 seconds, sounding the same throughout those seconds, ending with a loud pop, so loud you could swear Wa//lly made a hole in his pants. He sighs, feeling less pressure in his belly. Then he smells the air. A ripe fart stink permeates the once clear air in the shop, which How//dy and Ba//rn notice as well. "Jeez! How did somethin so small make somethin so smelly?" and now Wa//lly feels a little awkward that he ripped something that smells so terrible. But this awkwardness doesn't stay once it's How//dy's turn.
How//dy's stomach rumbles audibly and he leans over, rubbing his mid section with two hands, the other two holding the counter. Ba//rn asks him what's wrong, and How//dy just says, "You tell me? You thought it'd be a great idea to eat at that *uugh!* new place!" How//dy would be so used to eating leafy greens like any caterpillar that eating greasy unhealthy foods for once totally turns his stomach upside down. He tries not to but a loud, bubbly fart rumbles against his pants, blowing the strings on his apron. Squeezing his cheeks together doesn't help and only amplifies the sound. Clusters of louder short farts keep erupting as How//dy can't help but give up and relieve himself. When he's done, Ba//rn and Wa////y are laughing while teal blush forms on How//dy's face. "Well, I'm lucky no one else is in this shop. Otherwise, they would've been running."
Ba//rn comments saying, "Those are worse than your usual farts!" Which only makes How//dy blush more. "But that's nothing. Watch this." He leans against the counter, slightly lifting a let before a monsterous fart escapes. The whole counter, floor, and walls shake from his huge bassy fart. What's crazy is that it wasn't even from the chili dog.
Wa//lly holds his nose and How//dy holds his shirt over his nose, fans the air, and sprays with a room spray (which you can get for a good joke from How//dy's Place, the home of everything you need and everything you don't). Ba//rn//aby plays it off as if it's just a small toot, waving his backside with his hand, and his little tail, saying, "Whoo! I don't mean to toot my own horn but... well, I just did. Hehehehe!"
Wa//lly seems to understand now, but he's not a big fan of the combined smells from everyone. How//dy's about to say they should open the door to air the smell out, but then another neighbor walks in and immediately passes out from the smell.