socko
sock o |ˈsäkō ˈsɑkoʊ | ▶adjective informal stunningly effective or successful: a sellout, socko performance. ORIGIN 1920s: from sock in the sense ‘forceful blow ’ + -o .
socko |ˈsɒkəʊ | ▶adjective informal, chiefly N. Amer. stunningly effective or successful: a sell-out, socko performance. ORIGIN 1920s: from sock in the sense ‘forceful blow ’ + -o .