Metabolize To Freedom (also metabolizing towards freedom or metabolized to freedom). A medical term. When someone is brought to the
hospital drunk, but is not under arrest, they
hold the person until the alcohol has metabolized, then they are free to go.
If the
doctor OK's it, by
morning this person should be MTF.
Chicago Tribune article: We remove their
urine-soaked clothes, put them on our monitors and for the most part let them "MTF"