Н167
К НОГТЮ (прижать, взять) кого
substandPrepPInvaradv or
subj-compl with copula (
subj human or
collect)
to deal with s.o. severely, sometimes going so far as to kill him
X прижмет Y-a к ногтю — (in refer, to punishment) X will come down hard on Y
(in refer, to killing) X will blot (wipe) Y outX will do away with Y.