to defy all laws and moral principles; unruly; to act without restraint or regard for authority

to have no regard for law or discipline; to act with total disregard for the rules

unable to do anything about a situation; at one's wits' end; having no way to handle a problem

impossible to describe; unspeakable; inexpressible in words

Literally "a monk holding an umbrella—no hair and no sky", a play on words where "no hair" [[无发|無髮|wu2 fa4]] sounds like "no law" [[无法|無法|wu2 fa3]], and the umbrella blocks the sky; used to describe someone who is completely lawless and defies all rules or principles.

to have no choice but to; to be unable to avoid doing something