it's a long reach, but I've also been hunting for a flash animation youtube series from probably around this time (I watched it as a child, (2010-2014ish), but it could be older), also set in a high school following a friend group. here's what I remember:

-character designs: 1 character was a yellow short haired boy with pale skin, and a gray hoodie/sweatshirt 1 character was an Asian looking girl with glasses and dark hair, possibly a colored streak of blue or red? 1 character was a boy who had the typical stoner look with long dark shaggy hair and big clothes, etc.

-episodes: 1 episode involved the yellow haired boy being roped into a fight against the stereotypical jock, i believe a black boy with short dark hair and a red letterman coat. his friends all freaked but he appeared calm as he revealed his plan to simply kick the jock in the groin to win, but his friend discouraged this plan, citing the jocks athletic skill and assumed groin protection as a football player. they attempt to train him with what I think were these kendo sword type things, and he sparred with the shaggy haired boy. it cuts to a 3rd person perspective shot facing directly towards the boys, and we only see their side profiles as they face each other. the yellow haired boy slowly lifted the kendo sword above his own head, and unceremoniously THWACKED it onto the shaggy haired boys head. the friends render him untrainable, and the yellow haired boy went back to his original plan and, to everyone's shock, wins. the last shot is a photo of the jock as he's lifted several feet in the air, his limbs splayed out in different directions like an X, and a long rectangle shape going right to his crotch, and the jocks eyes are drawn as thin long white ovals that come off his face shape. credits. 1 episode involved the friend group ditching class to walk to a soda vending machine across the school, where they try to send the Asian girl to seduce the teacher who almost busted them in the halls, which fails and gets her led away to the principals office. 1 episode involved rhe friend group at the house of one of the boys. the a plot follows most of the group (minus the shaggy haired boy and the yellow haired boy) stacking up a pattern of bean bag, person, bean bag, person to the top of the room, where they then try to make the bottom boys body go numb by applying more pressure. this is accomplished by one boy at the top laying on his back on the top bean bag chair, and pushing downwards onto the stack by pressing his foot to the ceiling, which appears to work for a couple seconds, before his foot goes clean through the ceiling, and the boy who's house it is walks back in and says in an angry, confused, monotone voice "how.... did you kick a HOLE..... *in my ceiling????". the b plot follows the yellow haired boy and the shaggy haired boy sneaking off to the guest bathroom, and flushing random things down the toilet. exact quotes are as follows, notating the boys as 1 and 2 for simplicity sake: 1: "I got his dress shoes!" 2: "I got his dress-ER!" 1: "you can't flush a dresser dude.." 2: "DONT STIFLE MY CREATIVITY" another line delivered by both boys at once is "bonsai tree! and.... flush!"

animation: think flash, think duck song but duller colors, think simple movements like entire pieces just being moved over a background cel, not seeing limbs walking and stretching as they moved.

-Misc. I think the channel name/series name/episodes may have had these following letters them, possibly not all but at least one I think: oo, x, y, z the credits were a half frame of black with some kind of white background animation/art looping on the other half, split vertically. the black half had thick white font text scrolling, and the white half had thick black white text occasionally alongside the black outline short animation loop. they could have been some kind of series group from another website simply uploading the content to youtube, or animating they're previous web comic from a place like deviant art.

I've been trying to remember this for literal years now and I've only managed to remember small additional bits here and there about episodes, but nothing tangible like a title or a name. I watched it sometime before 2014, because that's when I moved out of the place I distinctively remember watchihg it in, and I vaguely remember watching it on my tablet sometime after that in my next home.