On hand = Available
Ｉ always keep enough money on hand to pay for my lunch.
Warm as a toast. = Very warm and comfortable.
Even though it's cold outside I'm warm as a toast in my new ski jacket.
As cold as ice. = Extremely cold.
Her heart is warm but her hands are as cold as ice.
Odd man out. = Someone who is left out of an agreement, usually the loser.
Rick and Jerry both tried for the same job, but Rick was the odd man out.
Offbeat. = Not usual, lacking color.
His offbeat jokes offend a great number of people.
Lay over. = Stop over, delay in travel either intentional or unintentional.
On my way to Orlando I was forced to lay over in Chicago due to inclement weather.
Lay down the law. = To establish discipline or to enforce a set of rules.
The manager laid down the law about the use of the telephone for private calls
Farfetched. = Not really true, using one's imagination to extremes.
His explanation was so farfetched that no one could believe him.
Laid up. = Out of action.
I broke my leg skiing last year and I was laid up for three weeks.
To take on. = Accept.
He takes on more responsibility than he can handle so he never completes anything.