Relier Pairs IDIOMS. AGEVersion en ligne IDIOMS. AGE par María Marteles 1 get on in years 2 feel your age 3 long in the tooth 4 (be) over the hill 5 (live to a) ripe old age 6 to be knee-high to a grasshopper 7 rob the cradle 8 silver surfer 9 to act your age 10 mutton dressed as a lamb Realize that you are no longer young To live until you are very old. Reach an age when you can no longer perform as well as before. Very young or small child a person who tries to look younger by wearing clothes designed for younger people no to behave as someone younger An elderly person who uses the internet Someone who is growing old. Have a romantic relationship with someone who is much younger than yourself. Too old to do something