• in a lather

there is method in his madness

• have got another thing coming

• every other

• you could have knocked me down with a feather

• at each other's throat

• split hairs

• go in one ear and out the other

• six of one and half a dozen of the other

• am I my brother's keeper

there's no knowing

there's no saying

• the father and mother of

• look the other way

there is not much fear of it

• neither fish nor flesh nor good red herring

• a rolling stone gathers no moss

• every Tom Dick and Harry

there are no flies on him

• Big Brother

• the shoe is on the other foot

• neither here nor there

• have other fish to fry

• featherbed him

• be torn between one thing and another

• one man's meat is another man's poison

• this and that that and the other

• teach one's grandmother to suck eggs

• wool-gathering

thereby hangs a tale

there's more to it than meets the eye