out of it vs out on one's feet

out of it

prep
  • Not participating in some trend or group. 

  • Disoriented; not thinking clearly. 

  • So intoxicated (from alcohol or drugs) that one is unaware of what is going on, stupefied 

  • Asleep or unconscious 

out on one's feet

adj
  • Stupefied; dazed; nonfunctional. 

  • Standing erect but not consciously aware of one's surroundings, or only minimally aware, and having little or no ability to control one's bodily actions, as a result of physical injury or exhaustion. 

How often have the words out of it and out on one's feet occurred in a corpus of books? (source: Google Ngram Viewer )