1. Cock and Bull story:
=A made up story
she just told me a cock and bull story about her absence on the other day.
2. Get your hands dirty:
=get involved in dishonest activities.
“Be prepared to get your hands dirty.”
3. Slack off:
=To be lazy in work,
decrease in activity or intensity
Business has slacked off so much these days.
4. At sea:
=Confused our lost
Krishna was at sea over the geometry problem.
5. To call spade a spade:
=To be frank and truthful.
One who never conceals his opinion.
I just love it when someone calls a spade a spade.
6.To break the ice:
= to break the silence
He tried to break the ice by offering them coffee.
7. In high spirits:
very happy, extremely happy
The boys were in high spirits, forgetting all there previous troubles
8. Smell a rat:
Suspect something foul,
The Rapid gains disclosed by the company made lots of investors smell a rat.
9. Sit on the fence:
she is on the fence about whether she should continue her job or go for higher studies.