• the pot calling the kettle black

• in a twinkling of an eye

• all in good time

• sling mud at it

• a willing horse never wants work

• a stumbling-block

• in the twinkling of an eye a twinkling

• be spoiling for it

• to be rolling in it

• on the blink

• be in fear and trembling of

• have a final fling

• take a telling

• take the king's shilling

• a rolling stone gathers no moss

• plain sailing

• wheeling and dealing

• selling like hot cakes

• make a killing

• play on his feelings fears

• as easy as falling off a log

• you're telling me

• sling mud at

• keep the ball rolling

• the spirit is willing but the flesh is weak

• a slinging-match

• an ugly duckling