Fit as a fiddle
To be healthy and physically fit.My grandfather is ninety years old but he is as fit as a fiddle.
Fit and trim
To be slim and in good physical shape.My sister looked fit and trim after spending six weeks at the resort.
Fishy
To be strange and suspicious.Something is fishy with the man's excuse for being late for work.
Fall on deaf ears
To ignore something that is intended for you.My complaints to my boss always fall on deaf ears.
Fall off the wagon
To return to use alcohol or drugs after stopping for awhile.The man fell off the wagon after he had stopped drinking for three years.
Fall off
To decrease.The number of tourists to the island is falling off.
Fall into place
To fit together, to become organized.Everything fell into place and we were able to prepare for our trip to Brazil.
Fall into line
To conform to a certain course of action.The players fell into line after the coach became more strict during practice.
Fall into line
To stand properly in a row (like soldiers).The soldiers fell into line as they waited for the inspection.
Fall into a trap
To become caught in someone's scheme.The criminals fell into a trap that the police had prepared for them.