to be dressed to the nines, to be dressed to kill

(figuratively, informal) to have one foot in the grave

(figuratively, informal) to make a mountain out of a molehill (to get all worked up over the slightest difficulties)

(figuratively) to use a sledgehammer to crack a nut

(figuratively) to use a sledgehammer to crack a nut

(figuratively, idiomatic) to lisp, to have a lisp

(vulgar, figuratively) to have a stick up one's ass, to have a pole up one's ass, to be stuck-up

(simile) to be a very poor swimmer

(simile) long as a month of Sundays, like watching paint dry, extremely long and tedious

(informal) to get lost, go to hell