idioms

  have feet of clay (to have a bad quality in your character) No one is perfect; all human beings have feet of clay. He was surprised when he discovered that his hero had feet of clay.     envocabulary.com

  on the tip of my tongue (said when you know a name, word, etc. but cannot remember it) Her name is on the tip of my tongue, but I just can’t remember it. Oh, I should have recorded it. It’s on the tip of my tongue.     envocabulary.com

  hold your tongue (remain silent, even though you want to speak) How many times must I tell you to hold your tongue, young man? I will sit tight, hold my tongue, and not cause any problems for you.     envocabulary.com

  sink your teeth into (to get fully involved in) You finally have a project you can sink your teeth into. I can’t wait to sink my teeth into this new course.     envocabulary.com

  at the drop of a hat (immediately and without stopping to think) They fell in love with each other at the drop of a hat. You can’t expect me to move my home at the drop of a hat.     envocabulary.com