Р240
СПУСТЯ РУКАВА
coll,
disapprov (
Verbal AdvInvaradvmore often used with
impfv verbs) (to do
sth. ) carelessly, haphazardly, without an honest attempt
any old way
in a slipshod mannersloppilyhalfheartedlyslapdashlazily.
the corresponding modern form is the perfective verbal adverb «спустив».