anyone, but really mostly people at school, who really like sports. essentially, he loathes jocks. LMFAO. it's a sort of burning jealousy that manifests when he sees his peers that are particularly athletics-inclined. so, to distract from that self-loathing, he turns it into external loathing ! those interested in sports are just less intelligent than him. rowdy, witless, and cruel, nothing more ! he sneers and tells himself that he's much smarter than anyone who dedicates themselves so much to sports than to actual learning. sigh.