noun
nylon track pants (street fashion)
Slang abbreviation of シャカシャカパンツ, referring to the swishy nylon track pants popular in Japanese street fashion. Casual, youth-oriented term.
See also: シャカシャカ
あの子、今日もシャカパン履いてるね。
That kid is wearing nylon track pants again today.
90年代にシャカパンが流行ったらしい。
Apparently nylon track pants were trendy in the 90s.