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