Oh my god, I've watched that before but I never noticed the "are you winning son" reference! lmao thanks for reminding me of the music video too, it's excellent

Dude it's a complete music video and you need the context. But since you asked:

"You're a short muthafucker and nobody likes you. Everybody says 'look how fuckin short that guy is' and it stops you from forming meaningful relationships. When you were born everybody thought you were just a head, but then the doctor said 'wait this tiny fuckin short-ass baby got a tiny little body and I hate it' " persistent flute music

But ya know, lemme give you one of my favorite vicious mockery

You're a whiny bitch that complains when people contribute to the conversation in a format you don't like and everyone is too polite to tell you that your presence drags down every conversation you're a part of. The world would be slightly more enriched if you would just shut your goddamn mouth for five seconds and appreciate people for what they bring to the table.

It's a whole experience not just a line. It's a link to a Tom cardy video where he sings about vicious mockering a short guy so hard he dies.