"jdn umhauen" in English jdn. umhauen {v.t.} to knock sb.'s socks off jdn. umhauen to devastate sb. Detailed translations for "jdn umhauen" jdn. umhauen{transitive verb} jdn. umhauen to knock sb.'s socks off jdn. umhauen jdn. umhauen(also: jdn. am Boden zerstören) to devastate sb.