• firing on all cylinders

• there's no smoke without fire

• cross one's fingers

• at daggers drawn

• after hours

• ruffle his feathers

• broad shoulders

• rub shoulders with

• accidental lovers

• with flying colours

• the cat's whiskers

• get one's marching orders

• there's no time like the present

• have him by the short hairs

• a rolling stone gathers no moss

• at each other's throat

• there's no love lost between them

• at all hours

• the shivers

• have one's wires crossed

• do the honours

• be gathered to one's fathers

• answer to your prayers

• look daggers at him

• split hairs

• win one's spurs

• nail one's colours to the mast

• there's no saying

• know all the answers

• at close quarters

• butterfingers