The term "bails one out" refers to rescuing someone from a difficult or unpleasant situation. The opposite of bails one out is "puts one in" or "traps one." These antonyms imply that someone intentionally causes problems or difficulties for another person. Additionally, another antonym for bails one out could be "abandons" or "leaves in the lurch." This implies that the person in the difficult situation is left to fend for themselves without any support. Hence, it is important to understand the context in which these words are used to grasp their actual meanings.