wipe (someone or something) off the map
To totally eliminate, eradicate, or destroy someone or something. The president vowed to wipe these terrorist scumbags off the map. Through our vaccination efforts, we've been able to wipe polio off the map.
wipe off the map
Also, wipe off the face of the earth. Eliminate completely, as in Some day we hope to wipe malaria off the map. This idiom uses wipe in the sense of "obliterate," and map and face of the earth in the sense of "everywhere."
wipe something off the map
obliterate something totally. wipe off the map
To destroy completely; annihilate.