|at the drop of a hat
||without needing any advance notice
||My Grandma will babysit for anyone at the drop of a hat.
|(have a) bee in one's bonnet
||something that is annoying someone
||Milan has had a bee in his bonnet all day, but he won't tell me what's wrong.
|below the belt
||beyond what is fair or socially acceptable
||His comment about Manfred's handicap was below the belt.
|bursting at the seams
||not fitting anymore
||I ate too much. I'm bursting at the seams in these jeans.
|caught with one's pants down
||My students caught me with my pants down on Monday. I forgot about the field trip.
|(have a) card up one's sleeve
||have a secret or reserve plan
||I think Josh has a card up his sleeve cause he wants me to wear a dress to the fast-food restaurant.
||work extra hard
||It's almost exam time, so I need to buckle down this weekend.
|burn a hole in one's pocket
||money that one is tempted to spend
||Let's go to the mall after school. There's a hundred dollar bill burning a hole in my pocket.
|dress to kill, dress to the nines
||dress in nice or sexy clothes
||My cousin was dressed to kill on her birthday.
|fit like a glove
||fit perfectly (tight to one's body)
||Anita's prom dress fits me like a glove.
||in great detail, extremely carefully
||The police looked for fingerprints with a fine-tooth comb.
|fly by the seat of one's pants
||do by instinct, not by plan
||I had never taught art to kids before. I had to fly by the seat of my pants.
|handle with kid gloves
||Please handle my grandmother's tea set with kid gloves.
||We buy hand-me-down skates because the kids' feet grow so quickly.
||three goals scored by one person
||The fans cheered when the hockey player got a hat trick.
|in one's birthday suit
||in the nude
||The swimmers in the lake were in their birthday suits.
|keep one's shirt on
||try to stay calm
||I know you're in a hurry, but please keep your shirt on.
|keep something zipped
||keep something a secret
||We know we're having a boy, but we're keeping it zipped from the grandparents.
|off the cuff
||said without planning
||I didn't have a speech prepared. Everything I said was off the cuff.
|pull up one's socks
||Marco will have to pull up his socks if he wants to make the football team.
|put a sock in it
||Put a sock in it! I'm trying to tell a story.
|put one's thinking cap on
||think hard in order to solve a problem
||I can't remember where the Christmas decorations are. I'll have to put my thinking cap on.
|put oneself in someone else's shoes
||imagine what it would be like to be in someone else's situation
||Put yourself in Amber's shoes. She doesn't even have a car to drive.
|ride one's coattails
||let someone else do all of the work
||It was a group project, but everyone rode Andrew's coattails.
|roll up one's sleeves
||get down to hard work
||The celebrities rolled up their sleeves and washed cars for charity.
|take one's hat off to someone
||recognize or honour someone for something
||I take my hat off to Jim. The doctors said he'd never walk, and he just ran a marathon.
|wear one's heart on one's sleeve
||display emotions openly
||My Dad's not afraid to cry. He always wears his heart on his sleeve.
|wear the trousers
||be in charge, make the rules
||By the looks of things, the kids wear the trousers in this household.