{adj. phr.} 1. Pleading; begging very hard. * /The boys were on their knees for hours before their parents agreed to their camping plans./ * /The Jacksons won't contribute to the Red Cross unless you get on your knees./ 2. In a very weak condition; near failure. * /When the graduates of the school heard that it was on its knees they gave money generously so that it would not close./
ON ONE'S KNEES
Meaning of ON ONE'S KNEES in English
Slang English vocab. Английский сленговый словарь. 2012