П-3

ДАЙ ЕМУ ПАЛЕЦ, ОН И ВСЮ РУКУ ОТКУСИТ (saying) if you make a small concession to or do a favor for him (her etc), he (she etc) will demand even more: = give him (her etc) an inch and he'll (she'll etc) take a mile given an inch hell (she'll etc) take a yard give ((offer) him (her etc) a finger and he'll (she'll etc) grab your whole arm.

(author's usage) (Захар:) Народ наш груб, он некультурен... и, если протянуть ему палец, он хватает всю руку... (Горький 1). (Zakhar:) Our people are coarse and uncultivated. If you offer them a finger they'll grab your whole arm (1b).