Over the hill

One-trick pony

On top of the world

On the up and up

Over the hill

One-trick pony

On top of the world

On the up and up

On the ball

Oldest trick in the book

Old friends and old wine are best

Never a rose without the prick

Mind your P’s and Q’s

Like the back of your hand

Leave well alone

Know your onions

Know full well

Head south

Half-baked

Hail-fellow-well-met

Grey suits

Great guns

Good hand

Good as gold

Go over like a lead balloon

Go down like a cup of cold sick

Full swing

Friendly footing

Flowery speech

Fire on all cylinders

Fine and dandy

Feeling blue

Feel like a million

Fair thee well

Elephant in the room