|a total stranger
||one you have never seen, a perfect stranger
||"Can I give you a ride home?" "No. You're a total stranger."
|a touch of
||a little illness, minor symptoms
||Mary's not feeling well today. She has a touch of the flu.
|a tough act to follow
||a performance that is not easy to equal
||Gail danced very well. That is a tough act to follow.
|a tough call
||a difficult decision, a hard choice
||Was the goal scored before the game ended? It's a tough call.
|a tough row to hoe
||(See a hard row to hoe)
|a tough time of it
||a time of stress or bad luck, a rough time of it
||When Bev left home she had a tough time of it. She had no job.
|a tower of strength
||a person who helps you during a crisis, a brick
||When my parents were killed in an accident, Harry was a tower of strength to me.
|a wake-up call
||a warning, a caution, wake up and smell the coffee
||"I got a D on my English test!" "Is it a wake-up call to work harder?"
||not owing each other, call it square
||You owe me $20, but you gave me a CD, so it's a wash, eh.
||a failure, a lost cause
||No one attended the concert. It was a wash-out.