Italian
mettere una pulce nell'orecchio
to put a flea in somebody's ear = to raise a doubt/suspicion
saltare la mosca al naso
a fly jumping on somebody's nose = to fly of the handle - to become abruptly annoyed, lose one's temper.
avere gli occhi foderati di prociutto
to have one's eyes lined with ham = can't see the wood for the trees - to be unable to see what is distinctly in sight
avere le orecchie foderate di prosciutto
to have one's ears lined with ham = to be unable to hear what can be clearly heard
avere una fame da lupo
to be as hungry as a wolf = to be very hungry/starving