Expressions (phrases, clauses, etc.), Godan verb with 'ku' ending
to outwit; to outsmart; to counterplot; to defeat
Idiomatic expressionsee 裏かく
泥棒は警官の裏をかいて盗品を持って逃げた。The thief outwitted the police and got away with his loot. to pierce something all the way through
Also written 裏を掻く【うらをかく】