Idioms  F - J   [F] [G] [H] [I] [J]

F
  Fall in love with someone/something Feel like a fish out of water Be fishy
   
  Food for thought A frog in someone's throat  
       
G  
  Get over something Get up (Wake up) on the wrong side of the bed
 
  Give someone a hand Be glued to something Go nuts
   
  Grab a bite Great minds think alike.  
       
H  
  A hand-me-down Hat trick  
 
  (Somebodys') heart sinks Here you go / are Hit the books
 
  Hit the ceiling / roof Hit the nail on the head Hit the sack/hay
   
  Hold one's horses Holy Cow  
       
I
  Be in a pickle Be in the same boat It's easier said than done.
   
  Be in hot water It's about time